mirror of
https://github.com/gryf/pentadactyl-pm.git
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667 lines
23 KiB
JavaScript
667 lines
23 KiB
JavaScript
// Copyright (c) 2008-2010 by Kris Maglione <maglione.k@gmail.com>
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//
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// This work is licensed for reuse under an MIT license. Details are
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// given in the LICENSE.txt file included with this file.
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"use strict";
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/** @scope modules */
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/** @instance rangefinder */
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const RangeFinder = Module("rangefinder", {
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init: function () {
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this.lastSearchPattern = "";
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},
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openPrompt: function (mode) {
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let backwards = mode == modes.FIND_BACKWARD;
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commandline.open(backwards ? "?" : "/", "", mode);
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if (this.rangeFind && this.rangeFind.window.get() == window)
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this.rangeFind.reset();
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this.find("", backwards);
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},
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bootstrap: function (str, backward) {
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if (this.rangeFind && this.rangeFind.stale)
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this.rangeFind = null;
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let highlighted = this.rangeFind && this.rangeFind.highlighted;
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let selections = this.rangeFind && this.rangeFind.selections;
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let regex = false;
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let matchCase = !(options["ignorecase"] || options["smartcase"] && !/[A-Z]/.test(str));
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let linksOnly = options["linksearch"];
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str = str.replace(/\\(.|$)/g, function (m, n1) {
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if (n1 == "c")
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matchCase = false;
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else if (n1 == "C")
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matchCase = true;
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else if (n1 == "l")
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linksOnly = true;
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else if (n1 == "L")
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linksOnly = false;
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else if (n1 == "r")
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regex = true;
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else if (n1 == "R")
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regex = false;
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else
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return m;
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return "";
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});
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// It's possible, with :tabdetach for instance, for the rangeFind to
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// actually move from one window to another, which breaks things.
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if (!this.rangeFind
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|| this.rangeFind.window.get() != window
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|| linksOnly != !!this.rangeFind.elementPath
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|| regex != this.rangeFind.regex
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|| matchCase != this.rangeFind.matchCase
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|| !!backward != this.rangeFind.reverse) {
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if (this.rangeFind)
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this.rangeFind.cancel();
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this.rangeFind = RangeFind(matchCase, backward, linksOnly && options["hinttags"], regex);
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this.rangeFind.highlighted = highlighted;
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this.rangeFind.selections = selections;
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}
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return this.lastSearchPattern = str;
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},
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find: function (pattern, backwards) {
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let str = this.bootstrap(pattern, backwards);
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if (!this.rangeFind.search(str))
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this.timeout(function () { dactyl.echoerr("E486: Pattern not found: " + pattern); }, 0);
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return this.rangeFind.found;
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},
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findAgain: function (reverse) {
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if (!this.rangeFind)
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this.find(this.lastSearchPattern);
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else if (!this.rangeFind.search(null, reverse))
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dactyl.echoerr("E486: Pattern not found: " + this.lastSearchPattern);
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else if (this.rangeFind.wrapped)
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// hack needed, because wrapping causes a "scroll" event which
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// clears our command line
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this.timeout(function () {
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let msg = this.rangeFind.backward ? "search hit TOP, continuing at BOTTOM"
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: "search hit BOTTOM, continuing at TOP";
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commandline.echo(msg, commandline.HL_WARNINGMSG,
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commandline.APPEND_TO_MESSAGES | commandline.FORCE_SINGLELINE);
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}, 0);
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else
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commandline.echo((this.rangeFind.backward ? "?" : "/") + this.lastSearchPattern, null, commandline.FORCE_SINGLELINE);
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if (options["hlsearch"])
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this.highlight();
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this.rangeFind.focus();
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},
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// Called when the user types a key in the search dialog. Triggers a find attempt if 'incsearch' is set
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onKeyPress: function (command) {
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if (options["incsearch"]) {
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command = this.bootstrap(command);
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this.rangeFind.search(command);
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}
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},
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onSubmit: function (command) {
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if (!options["incsearch"] || !this.rangeFind || !this.rangeFind.found) {
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this.clear();
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this.find(command || this.lastSearchPattern, modes.extended & modes.FIND_BACKWARD);
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}
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if (options["hlsearch"])
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this.highlight();
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this.rangeFind.focus();
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},
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// Called when the search is canceled - for example if someone presses
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// escape while typing a search
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onCancel: function () {
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if (this.rangeFind)
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this.rangeFind.cancel();
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},
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get rangeFind() buffer.localStore.rangeFind,
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set rangeFind(val) buffer.localStore.rangeFind = val,
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/**
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* Highlights all occurrences of <b>str</b> in the buffer.
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*
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* @param {string} str The string to highlight.
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*/
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highlight: function () {
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if (this.rangeFind)
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this.rangeFind.highlight();
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},
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/**
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* Clears all search highlighting.
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*/
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clear: function () {
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if (this.rangeFind)
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this.rangeFind.highlight(true);
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}
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}, {
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}, {
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modes: function () {
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/* Must come before commandline. */
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modes.addMode("FIND_FORWARD", true);
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modes.addMode("FIND_BACKWARD", true);
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},
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commandline: function () {
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commandline.registerCallback("change", modes.FIND_FORWARD, this.closure.onKeyPress);
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commandline.registerCallback("submit", modes.FIND_FORWARD, this.closure.onSubmit);
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commandline.registerCallback("cancel", modes.FIND_FORWARD, this.closure.onCancel);
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commandline.registerCallback("change", modes.FIND_BACKWARD, this.closure.onKeyPress);
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commandline.registerCallback("submit", modes.FIND_BACKWARD, this.closure.onSubmit);
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commandline.registerCallback("cancel", modes.FIND_BACKWARD, this.closure.onCancel);
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},
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commands: function () {
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commands.add(["noh[lsearch]"],
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"Remove the search highlighting",
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function () { rangefinder.clear(); },
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{ argCount: "0" });
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},
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mappings: function () {
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var myModes = config.browserModes.concat([modes.CARET]);
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mappings.add(myModes,
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["/"], "Search forward for a pattern",
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function () { rangefinder.openPrompt(modes.FIND_FORWARD); });
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mappings.add(myModes,
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["?"], "Search backwards for a pattern",
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function () { rangefinder.openPrompt(modes.FIND_BACKWARD); });
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mappings.add(myModes,
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["n"], "Find next",
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function () { rangefinder.findAgain(false); });
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mappings.add(myModes,
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["N"], "Find previous",
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function () { rangefinder.findAgain(true); });
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mappings.add(myModes.concat([modes.CARET, modes.TEXT_EDIT]), ["*"],
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"Find word under cursor",
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function () {
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rangefinder.find(buffer.getCurrentWord(), false);
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rangefinder.findAgain();
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});
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mappings.add(myModes.concat([modes.CARET, modes.TEXT_EDIT]), ["#"],
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"Find word under cursor backwards",
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function () {
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rangefinder.find(buffer.getCurrentWord(), true);
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rangefinder.findAgain();
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});
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},
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options: function () {
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// prefs.safeSet("accessibility.typeaheadfind.autostart", false);
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// The above should be sufficient, but: https://bugzilla.mozilla.org/show_bug.cgi?id=348187
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prefs.safeSet("accessibility.typeaheadfind", false);
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options.add(["hlsearch", "hls"],
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"Highlight previous search pattern matches",
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"boolean", false, {
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setter: function (value) {
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try {
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if (value)
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rangefinder.highlight();
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else
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rangefinder.clear();
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}
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catch (e) {}
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return value;
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}
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});
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options.add(["ignorecase", "ic"],
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"Ignore case in search patterns",
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"boolean", true);
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options.add(["incsearch", "is"],
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"Show where the search pattern matches as it is typed",
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"boolean", true);
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options.add(["linksearch", "lks"],
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"Limit the search to hyperlink text",
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"boolean", false);
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options.add(["smartcase", "scs"],
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"Override the 'ignorecase' option if the pattern contains uppercase characters",
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"boolean", true);
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}
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});
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/**
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* @class RangeFind
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*
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* A fairly sophisticated typeahead-find replacement. It supports
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* incremental search very much as the builtin component.
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* Additionally, it supports several features impossible to
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* implement using the standard component. Incremental searching
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* works both forwards and backwards. Erasing characters during an
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* incremental search moves the selection back to the first
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* available match for the shorter term. The selection and viewport
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* are restored when the search is canceled.
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*
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* Also, in addition to full support for frames and iframes, this
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* implementation will begin searching from the position of the
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* caret in the last active frame. This is contrary to the behavior
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* of the builtin component, which always starts a search from the
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* beginning of the first frame in the case of frameset documents,
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* and cycles through all frames from beginning to end. This makes it
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* impossible to choose the starting point of a search for such
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* documents, and represents a major detriment to productivity where
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* large amounts of data are concerned (e.g., for API documents).
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*/
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const RangeFind = Class("RangeFind", {
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init: function (matchCase, backward, elementPath, regex) {
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this.window = Cu.getWeakReference(window);
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this.elementPath = elementPath || null;
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this.reverse = Boolean(backward);
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this.finder = services.create("find");
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this.matchCase = Boolean(matchCase);
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this.regex = Boolean(regex);
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this.ranges = this.makeFrameList(window.content);
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this.reset();
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this.highlighted = null;
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this.selections = [];
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this.lastString = "";
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},
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get backward() this.finder.findBackwards,
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get matchCase() this.finder.caseSensitive,
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set matchCase(val) this.finder.caseSensitive = Boolean(val),
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get regex() this.finder.regularExpression || false,
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set regex(val) {
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try {
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return this.finder.regularExpression = Boolean(val);
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}
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catch (e) {
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return false;
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}
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},
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get searchString() this.lastString,
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get selectedRange() {
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let selection = (buffer.focusedFrame || window.content).getSelection();
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return (selection.rangeCount ? selection.getRangeAt(0) : this.ranges[0].range).cloneRange();
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},
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set selectedRange(range) {
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this.range.selection.removeAllRanges();
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this.range.selection.addRange(range);
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this.range.selectionController.scrollSelectionIntoView(
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this.range.selectionController.SELECTION_NORMAL, 0, false);
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},
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cancel: function () {
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this.purgeListeners();
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this.range.deselect();
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this.range.descroll();
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},
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compareRanges: function (r1, r2)
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this.backward ? r1.compareBoundaryPoints(r1.END_TO_START, r2)
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: -r1.compareBoundaryPoints(r1.START_TO_END, r2),
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findRange: function (range) {
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let doc = range.startContainer.ownerDocument;
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let win = doc.defaultView;
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let ranges = this.ranges.filter(function (r)
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r.window == win && RangeFind.contains(r.range, range));
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if (this.backward)
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return ranges[ranges.length - 1];
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return ranges[0];
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},
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findSubRanges: function (range) {
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let doc = range.startContainer.ownerDocument;
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for (let elem in util.evaluateXPath(this.elementPath, doc)) {
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let r = RangeFind.nodeRange(elem);
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if (RangeFind.contains(range, r))
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yield r;
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}
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},
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focus: function () {
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if (this.lastRange)
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var node = util.evaluateXPath(RangeFind.selectNodePath, this.range.document,
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this.lastRange.commonAncestorContainer).snapshotItem(0);
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if (node) {
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node.focus();
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// Re-highlight collapsed selection
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this.selectedRange = this.lastRange;
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}
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},
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highlight: function (clear) {
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if (!clear && (!this.lastString || this.lastString == this.highlighted))
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return;
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if (clear && !this.highlighted)
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return;
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if (!clear && this.highlighted)
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this.highlight(true);
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if (clear) {
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this.selections.forEach(function (selection) {
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selection.removeAllRanges();
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});
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this.selections = [];
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this.highlighted = null;
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}
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else {
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this.selections = [];
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let string = this.lastString;
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for (let r in this.iter(string)) {
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let controller = this.range.selectionController;
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for (let node = r.startContainer; node; node = node.parentNode)
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if (node instanceof Ci.nsIDOMNSEditableElement) {
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controller = node.editor.selectionController;
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break;
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}
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let sel = controller.getSelection(Ci.nsISelectionController.SELECTION_FIND);
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sel.addRange(r);
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if (this.selections.indexOf(sel) < 0)
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this.selections.push(sel);
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}
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this.highlighted = this.lastString;
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if (this.lastRange)
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this.selectedRange = this.lastRange;
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this.addListeners();
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}
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},
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indexIter: function (private_) {
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let idx = this.range.index;
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if (this.backward)
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var groups = [util.range(idx + 1, 0, -1), util.range(this.ranges.length, idx, -1)];
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else
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var groups = [util.range(idx, this.ranges.length), util.range(0, idx + 1)];
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for (let i in groups[0])
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yield i;
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if (!private_) {
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this.wrapped = true;
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this.lastRange = null;
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for (let i in groups[1])
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yield i;
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}
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},
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iter: function (word) {
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let saved = ["lastRange", "lastString", "range"].map(function (s) [s, this[s]], this);
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try {
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this.range = this.ranges[0];
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this.lastRange = null;
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this.lastString = word;
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var res;
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while (res = this.search(null, this.reverse, true))
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yield res;
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}
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finally {
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saved.forEach(function ([k, v]) this[k] = v, this);
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}
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},
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makeFrameList: function (win) {
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const self = this;
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win = win.top;
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let frames = [];
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let backup = null;
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function pushRange(start, end) {
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function push(r) {
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if (r = RangeFind.Range(r, frames.length))
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frames.push(r);
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}
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let range = start.startContainer.ownerDocument.createRange();
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range.setStart(start.startContainer, start.startOffset);
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range.setEnd(end.startContainer, end.startOffset);
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if (!self.elementPath)
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push(range);
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else
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for (let r in self.findSubRanges(range))
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push(r);
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}
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function rec(win) {
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let doc = win.document;
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let pageRange = RangeFind.nodeRange(doc.body || doc.documentElement.lastChild);
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backup = backup || pageRange;
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let pageStart = RangeFind.endpoint(pageRange, true);
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let pageEnd = RangeFind.endpoint(pageRange, false);
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for (let frame in array.iterValues(win.frames)) {
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let range = doc.createRange();
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if (util.computedStyle(frame.frameElement).visibility == "visible") {
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range.selectNode(frame.frameElement);
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pushRange(pageStart, RangeFind.endpoint(range, true));
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pageStart = RangeFind.endpoint(range, false);
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rec(frame);
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}
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}
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pushRange(pageStart, pageEnd);
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}
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rec(win);
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if (frames.length == 0)
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frames[0] = RangeFind.Range(RangeFind.endpoint(backup, true), 0);
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return frames;
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},
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reset: function () {
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this.startRange = this.selectedRange;
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this.startRange.collapse(!this.reverse);
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this.lastRange = this.selectedRange;
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this.range = this.findRange(this.startRange);
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this.ranges.first = this.range;
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this.ranges.forEach(function (range) range.save());
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this.forward = null;
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this.found = false;
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},
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// This doesn't work yet.
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resetCaret: function () {
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let equal = RangeFind.equal;
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let selection = this.win.getSelection();
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if (selection.rangeCount == 0)
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selection.addRange(this.pageStart);
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function getLines() {
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let orig = selection.getRangeAt(0);
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function getRanges(forward) {
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selection.removeAllRanges();
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selection.addRange(orig);
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let cur = orig;
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while (true) {
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var last = cur;
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this.sel.lineMove(forward, false);
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cur = selection.getRangeAt(0);
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if (equal(cur, last))
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break;
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yield cur;
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}
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}
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yield orig;
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for (let range in getRanges(true))
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yield range;
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for (let range in getRanges(false))
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yield range;
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}
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for (let range in getLines()) {
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if (this.sel.checkVisibility(range.startContainer, range.startOffset, range.startOffset))
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return range;
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}
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return null;
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},
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search: function (word, reverse, private_) {
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if (!private_ && this.lastRange && !RangeFind.equal(this.selectedRange, this.lastRange))
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this.reset();
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this.wrapped = false;
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this.finder.findBackwards = reverse ? !this.reverse : this.reverse;
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let again = word == null;
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if (again)
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word = this.lastString;
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if (!this.matchCase)
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word = word.toLowerCase();
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if (!again && (word == "" || word.indexOf(this.lastString) != 0 || this.backward)) {
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if (!private_)
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this.range.deselect();
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if (word == "")
|
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this.range.descroll();
|
|
this.lastRange = this.startRange;
|
|
this.range = this.ranges.first;
|
|
}
|
|
|
|
if (word == "")
|
|
var range = this.startRange;
|
|
else
|
|
for (let i in this.indexIter(private_)) {
|
|
if (!private_ && this.range.window != this.ranges[i].window && this.range.window != this.ranges[i].window.parent) {
|
|
this.range.descroll();
|
|
this.range.deselect();
|
|
}
|
|
this.range = this.ranges[i];
|
|
|
|
let start = RangeFind.sameDocument(this.lastRange, this.range.range) && this.range.intersects(this.lastRange) ?
|
|
RangeFind.endpoint(this.lastRange, !(again ^ this.backward)) :
|
|
RangeFind.endpoint(this.range.range, !this.backward);;
|
|
|
|
if (this.backward && !again)
|
|
start = RangeFind.endpoint(this.startRange, false);
|
|
|
|
var range = this.finder.Find(word, this.range.range, start, this.range.range);
|
|
if (range)
|
|
break;
|
|
}
|
|
|
|
if (range)
|
|
this.lastRange = range.cloneRange();
|
|
if (!private_) {
|
|
this.lastString = word;
|
|
if (range == null) {
|
|
this.cancel();
|
|
this.found = false;
|
|
return null;
|
|
}
|
|
this.found = true;
|
|
}
|
|
if (range && (!private_ || private_ < 0))
|
|
this.selectedRange = range;
|
|
return range;
|
|
},
|
|
|
|
addListeners: function () {
|
|
for (let range in array.iterValues(this.ranges))
|
|
range.window.addEventListener("unload", this.closure.onUnload, true);
|
|
},
|
|
purgeListeners: function () {
|
|
for (let range in array.iterValues(this.ranges))
|
|
range.window.removeEventListener("unload", this.closure.onUnload, true);
|
|
},
|
|
onUnload: function (event) {
|
|
this.purgeListeners();
|
|
if (this.highlighted)
|
|
this.highlight(false);
|
|
this.stale = true;
|
|
}
|
|
}, {
|
|
Range: Class("RangeFind.Range", {
|
|
init: function (range, index) {
|
|
this.index = index;
|
|
|
|
this.range = range;
|
|
this.document = range.startContainer.ownerDocument;
|
|
this.window = this.document.defaultView;
|
|
this.docShell = this.window.QueryInterface(Ci.nsIInterfaceRequestor)
|
|
.getInterface(Ci.nsIWebNavigation)
|
|
.QueryInterface(Ci.nsIDocShell);
|
|
|
|
if (this.selection == null)
|
|
return false;
|
|
|
|
this.save();
|
|
},
|
|
|
|
intersects: function (range)
|
|
this.range.compareBoundaryPoints(range.START_TO_END, range) >= 0 &&
|
|
this.range.compareBoundaryPoints(range.END_TO_START, range) <= 0,
|
|
|
|
save: function () {
|
|
this.scroll = Point(this.window.pageXOffset, this.window.pageYOffset);
|
|
|
|
this.initialSelection = null;
|
|
if (this.selection.rangeCount)
|
|
this.initialSelection = this.selection.getRangeAt(0);
|
|
},
|
|
|
|
descroll: function (range) {
|
|
this.window.scrollTo(this.scroll.x, this.scroll.y);
|
|
},
|
|
|
|
deselect: function () {
|
|
this.selection.removeAllRanges();
|
|
if (this.initialSelection)
|
|
this.selection.addRange(this.initialSelection);
|
|
},
|
|
|
|
get selectionController() this.docShell
|
|
.QueryInterface(Ci.nsIInterfaceRequestor)
|
|
.getInterface(Ci.nsISelectionDisplay)
|
|
.QueryInterface(Ci.nsISelectionController),
|
|
get selection() {
|
|
try {
|
|
return this.selectionController.getSelection(Ci.nsISelectionController.SELECTION_NORMAL)
|
|
}
|
|
catch (e) {
|
|
return null;
|
|
}
|
|
}
|
|
}),
|
|
contains: function (range, r)
|
|
range.compareBoundaryPoints(range.START_TO_END, r) >= 0 &&
|
|
range.compareBoundaryPoints(range.END_TO_START, r) <= 0,
|
|
endpoint: function (range, before) {
|
|
range = range.cloneRange();
|
|
range.collapse(before);
|
|
return range;
|
|
},
|
|
equal: function (r1, r2) {
|
|
try {
|
|
return !r1.compareBoundaryPoints(r1.START_TO_START, r2) && !r1.compareBoundaryPoints(r1.END_TO_END, r2)
|
|
}
|
|
catch (e) {}
|
|
return false;
|
|
},
|
|
nodeRange: function (node) {
|
|
let range = node.ownerDocument.createRange();
|
|
range.selectNode(node);
|
|
return range;
|
|
},
|
|
sameDocument: function (r1, r2) r1 && r2 && r1.endContainer.ownerDocument == r2.endContainer.ownerDocument,
|
|
selectNodePath: ["a", "xhtml:a", "*[@onclick]"].map(
|
|
function (p) "ancestor-or-self::" + p).join(" | ")
|
|
});
|
|
|
|
// vim: set fdm=marker sw=4 ts=4 et:
|