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https://github.com/gryf/pentadactyl-pm.git
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change directory structure to follow the more standard package hierarchy
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Doug Kearns
384
content/buffers.js
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384
content/buffers.js
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/***** BEGIN LICENSE BLOCK ***** {{{
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Version: MPL 1.1/GPL 2.0/LGPL 2.1
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The contents of this file are subject to the Mozilla Public License Version
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1.1 (the "License"); you may not use this file except in compliance with
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the License. You may obtain a copy of the License at
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http://www.mozilla.org/MPL/
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Software distributed under the License is distributed on an "AS IS" basis,
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WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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for the specific language governing rights and limitations under the
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License.
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(c) 2006-2007: Martin Stubenschrott <stubenschrott@gmx.net>
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Alternatively, the contents of this file may be used under the terms of
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either the GNU General Public License Version 2 or later (the "GPL"), or
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the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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in which case the provisions of the GPL or the LGPL are applicable instead
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of those above. If you wish to allow use of your version of this file only
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under the terms of either the GPL or the LGPL, and not to allow others to
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use your version of this file under the terms of the MPL, indicate your
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decision by deleting the provisions above and replace them with the notice
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and other provisions required by the GPL or the LGPL. If you do not delete
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the provisions above, a recipient may use your version of this file under
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the terms of any one of the MPL, the GPL or the LGPL.
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}}} ***** END LICENSE BLOCK *****/
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function Buffer() //{{{
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{
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////////////////////////////////////////////////////////////////////////////////
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////////////////////// PRIVATE SECTION /////////////////////////////////////////
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/////////////////////////////////////////////////////////////////////////////{{{
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var zoom_manager = ZoomManager.prototype.getInstance();
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const ZOOM_INTERVAL = 25;
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// initialize the zoom levels
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zoom_manager.zoomFactors = [zoom_manager.MIN];
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for (var i = ZOOM_INTERVAL; i <= zoom_manager.MAX; i += ZOOM_INTERVAL)
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zoom_manager.zoomFactors.push(i);
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function setZoom(value)
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{
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try
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{
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zoom_manager.textZoom = value;
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vimperator.echo("Text zoom: " + zoom_manager.textZoom + "%");
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// TODO: shouldn't this just recalculate hint coords, rather than
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// unsuccessfully attempt to reshow hints? i.e. isn't it just relying
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// on the recalculation side effect? -- djk
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// NOTE: we could really do with a zoom event...
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vimperator.hints.reshowHints();
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}
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catch (e) // Components.results.NS_ERROR_INVALID_ARG
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{
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vimperator.echoerr("Zoom value out of range (" + zoom_manager.MIN + "-" + zoom_manager.MAX + ")");
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}
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}
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// NOTE: this is only needed as there's currently no way to specify a
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// multiplier when calling ZM.reduce()/ZM.enlarge(). TODO: see if we can
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// get this added to ZoomManager
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function bumpZoomLevel(steps)
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{
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var adjusted_zoom = zoom_manager.snap(zoom_manager.textZoom);
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var current = zoom_manager.indexOf(adjusted_zoom);
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var next = current + steps;
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var start = 0, end = zoom_manager.zoomFactors.length - 1;
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if ((current == start && steps < 0) || (current == end && steps > 0))
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{
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vimperator.beep();
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return;
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}
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if (next < start)
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next = start;
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else if (next > end)
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next = end;
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setZoom(zoom_manager.zoomFactors[next]);
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}
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function checkScrollYBounds(win, direction)
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{
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// NOTE: it's possible to have scrollY > scrollMaxY - FF bug?
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if (direction > 0 && win.scrollY >= win.scrollMaxY || direction < 0 && win.scrollY == 0)
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vimperator.beep();
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}
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// both values are given in percent, -1 means no change
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function scrollToPercentiles(horizontal, vertical)
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{
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var win = document.commandDispatcher.focusedWindow;
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var h, v;
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if (horizontal < 0)
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h = win.scrollX;
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else
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h = win.scrollMaxX / 100 * horizontal;
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if (vertical < 0)
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v = win.scrollY;
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else
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v = win.scrollMaxY / 100 * vertical;
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win.scrollTo(h, v);
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}
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/////////////////////////////////////////////////////////////////////////////}}}
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////////////////////// PUBLIC SECTION //////////////////////////////////////////
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/////////////////////////////////////////////////////////////////////////////{{{
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this.__defineGetter__("URL", function()
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{
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// TODO: .URL is not defined for XUL documents
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//return window.content.document.URL;
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return window.content.document.location.href;
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});
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this.__defineGetter__("pageHeight", function()
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{
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return getBrowser().mPanelContainer.boxObject.height; // FIXME: best way to do this?
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});
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this.__defineGetter__("textZoom", function()
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{
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return zoom_manager.textZoom;
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});
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this.__defineSetter__("textZoom", function(value)
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{
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setZoom(value);
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});
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this.__defineGetter__("title", function()
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{
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return window.content.document.title;
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});
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// returns an XPathResult object
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this.evaluateXPath = function(expression, doc, ordered)
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{
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if (!doc)
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doc = window.content.document;
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var result = doc.evaluate(expression, doc,
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function lookupNamespaceURI(prefix) {
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switch (prefix) {
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case 'xhtml':
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return 'http://www.w3.org/1999/xhtml';
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default:
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return null;
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}
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},
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ordered ? XPathResult.ORDERED_NODE_SNAPSHOT_TYPE : XPathResult.UNORDERED_NODE_SNAPSHOT_TYPE,
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null
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);
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return result;
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}
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// TODO: move to v.buffers.list()
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this.list = function(fullmode)
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{
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if (fullmode)
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{
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// toggle the special buffer previw window
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if (vimperator.bufferwindow.visible())
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{
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vimperator.bufferwindow.hide();
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}
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else
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{
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var items = vimperator.completion.get_buffer_completions("");
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vimperator.bufferwindow.show(items);
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vimperator.bufferwindow.selectItem(getBrowser().mTabContainer.selectedIndex);
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}
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}
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else
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{
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// TODO: move this to vimperator.buffers.get()
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var items = vimperator.completion.get_buffer_completions("");
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var number, indicator, title, url;
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var list = "<table>"
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for (var i = 0; i < items.length; i++)
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{
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if (i == vimperator.tabs.index())
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indicator = " <span style=\"color: blue\">%</span> ";
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else if (i == vimperator.tabs.index(vimperator.tabs.alternate))
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indicator = " <span style=\"color: blue\">#</span> ";
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else
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indicator = " ";
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[number, title] = items[i][0].split(/:\s+/, 2);
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url = items[i][1];
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list += "<tr><td align=\"right\"> " + number + "</td><td>" + indicator + "</td><td>" + title + "</td><td><span style=\"color: green\">" + url + "</span></td></tr>";
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}
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list += "</table>";
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vimperator.commandline.echo(list, true);
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}
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}
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this.scrollBottom = function()
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{
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scrollToPercentiles(-1, 100);
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}
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this.scrollColumns = function(cols)
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{
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var win = window.document.commandDispatcher.focusedWindow;
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const COL_WIDTH = 20;
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if (cols > 0 && win.scrollX >= win.scrollMaxX || cols < 0 && win.scrollX == 0)
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vimperator.beep();
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win.scrollBy(COL_WIDTH * cols, 0);
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}
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this.scrollEnd = function()
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{
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scrollToPercentiles(100, -1);
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}
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this.scrollLines = function(lines)
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{
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var win = window.document.commandDispatcher.focusedWindow;
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checkScrollYBounds(win, lines);
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win.scrollByLines(lines);
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}
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this.scrollPages = function(pages)
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{
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var win = window.document.commandDispatcher.focusedWindow;
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checkScrollYBounds(win, pages);
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win.scrollByPages(pages);
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}
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this.scrollToPercentile = function(percentage)
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{
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scrollToPercentiles(-1, percentage);
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}
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this.scrollStart = function()
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{
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scrollToPercentiles(0, -1);
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}
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this.scrollTop = function()
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{
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scrollToPercentiles(-1, 0);
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}
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// TODO: allow callback for filtering out unwanted frames? User defined?
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this.shiftFrameFocus = function(count, forward)
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{
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try
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{
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var frames = [];
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// find all frames - depth-first search
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(function(frame)
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{
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if (frame.document.body.localName.toLowerCase() == "body")
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frames.push(frame);
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for (var i = 0; i < frame.frames.length; i++)
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arguments.callee(frame.frames[i])
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})(window.content);
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if (frames.length == 0) // currently top is always included
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return;
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// remove all unfocusable frames
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// TODO: find a better way to do this
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var start = document.commandDispatcher.focusedWindow;
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frames = frames.filter(function(frame) {
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frame.focus();
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if (document.commandDispatcher.focusedWindow == frame)
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return frame;
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});
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start.focus();
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// find the currently focused frame index
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// TODO: If the window is a frameset then the first _frame_ should be
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// focused. Since this is not the current FF behaviour,
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// we initalize current to -1 so the first call takes us to the
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// first frame.
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var current = -1;
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for (var i = 0; i < frames.length; i++)
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{
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if (frames[i] == document.commandDispatcher.focusedWindow)
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{
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var current = i;
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break;
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}
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}
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// calculate the next frame to focus
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var next = current;
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if (forward)
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{
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if (count > 1)
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next = current + count;
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else
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next++;
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if (next > frames.length - 1)
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{
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if (current == frames.length - 1)
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vimperator.beep(); // still allow the frame indicator to be activated
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next = frames.length - 1;
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}
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}
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else
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{
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if (count > 1)
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next = current - count;
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else
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next--;
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if (next < 0)
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{
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if (current == 0)
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vimperator.beep(); // still allow the frame indicator to be activated
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next = 0;
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}
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}
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// focus next frame and scroll into view
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frames[next].focus();
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if (frames[next] != window.content)
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frames[next].frameElement.scrollIntoView(false);
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// add the frame indicator
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var doc = frames[next].document;
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var indicator = doc.createElement("div");
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indicator.id = "vimperator-frame-indicator";
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// NOTE: need to set a high z-index - it's a crapshoot!
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var style = "background-color: red; opacity: 0.5; z-index: 999;" +
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"position: fixed; top: 0; bottom: 0; left: 0; right: 0;";
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indicator.setAttribute("style", style);
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doc.body.appendChild(indicator);
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// remove the frame indicator
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setTimeout(function() { doc.body.removeChild(indicator); }, 500);
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}
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catch (e)
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{
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// FIXME: fail silently here for now
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//vimperator.log(e);
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}
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}
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// updates the buffer preview in place only if list is visible
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this.updateBufferList = function()
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{
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if (!vimperator.bufferwindow.visible())
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return false;
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var items = vimperator.completion.get_buffer_completions("");
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vimperator.bufferwindow.show(items);
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vimperator.bufferwindow.selectItem(getBrowser().mTabContainer.selectedIndex);
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}
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this.zoomIn = function(steps)
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{
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bumpZoomLevel(steps);
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}
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this.zoomOut = function(steps)
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{
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bumpZoomLevel(-steps);
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}
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//}}}
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} //}}}
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// vim: set fdm=marker sw=4 ts=4 et:
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