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don't attempt to add the frame indicator if v.buffer.shiftFrameFocus is called

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on a non-HTML document
This commit is contained in:
Doug Kearns
2007-11-09 11:56:14 +00:00
parent 9ca8bb2cc7
commit 61c55f6f1d
1 changed files with 82 additions and 85 deletions
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167
content/buffers.js
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@@ -267,103 +267,100 @@ vimperator.Buffer = function() //{{{
// TODO: allow callback for filtering out unwanted frames? User defined?
this.shiftFrameFocus = function(count, forward)
{
try
if (!window.content.document instanceof HTMLDocument)
return;
var frames = [];
// find all frames - depth-first search
(function(frame)
{
var frames = [];
if (frame.document.body.localName.toLowerCase() == "body")
frames.push(frame);
for (var i = 0; i < frame.frames.length; i++)
arguments.callee(frame.frames[i])
})(window.content);
// find all frames - depth-first search
(function(frame)
if (frames.length == 0) // currently top is always included
return;
// remove all unfocusable frames
// TODO: find a better way to do this - walking the tree is too slow
var start = document.commandDispatcher.focusedWindow;
frames = frames.filter(function(frame) {
frame.focus();
if (document.commandDispatcher.focusedWindow == frame)
return frame;
});
start.focus();
// find the currently focused frame index
// TODO: If the window is a frameset then the first _frame_ should be
// focused. Since this is not the current FF behaviour,
// we initalize current to -1 so the first call takes us to the
// first frame.
var current = -1;
for (var i = 0; i < frames.length; i++)
{
if (frames[i] == document.commandDispatcher.focusedWindow)
{
if (frame.document.body.localName.toLowerCase() == "body")
frames.push(frame);
for (var i = 0; i < frame.frames.length; i++)
arguments.callee(frame.frames[i])
})(window.content);
if (frames.length == 0) // currently top is always included
return;
// remove all unfocusable frames
// TODO: find a better way to do this
var start = document.commandDispatcher.focusedWindow;
frames = frames.filter(function(frame) {
frame.focus();
if (document.commandDispatcher.focusedWindow == frame)
return frame;
});
start.focus();
// find the currently focused frame index
// TODO: If the window is a frameset then the first _frame_ should be
// focused. Since this is not the current FF behaviour,
// we initalize current to -1 so the first call takes us to the
// first frame.
var current = -1;
for (var i = 0; i < frames.length; i++)
{
if (frames[i] == document.commandDispatcher.focusedWindow)
{
var current = i;
break;
}
var current = i;
break;
}
}
// calculate the next frame to focus
var next = current;
if (forward)
{
if (count > 1)
next = current + count;
else
next++;
if (next > frames.length - 1)
{
if (current == frames.length - 1)
vimperator.beep(); // still allow the frame indicator to be activated
next = frames.length - 1;
}
}
// calculate the next frame to focus
var next = current;
if (forward)
{
if (count > 1)
next = current + count;
else
next++;
if (next > frames.length - 1)
{
if (count > 1)
next = current - count;
else
next--;
if (current == frames.length - 1)
vimperator.beep(); // still allow the frame indicator to be activated
if (next < 0)
{
if (current == 0)
vimperator.beep(); // still allow the frame indicator to be activated
next = 0;
}
next = frames.length - 1;
}
// focus next frame and scroll into view
frames[next].focus();
if (frames[next] != window.content)
frames[next].frameElement.scrollIntoView(false);
// add the frame indicator
var doc = frames[next].document;
var indicator = doc.createElement("div");
indicator.id = "vimperator-frame-indicator";
// NOTE: need to set a high z-index - it's a crapshoot!
var style = "background-color: red; opacity: 0.5; z-index: 999;" +
"position: fixed; top: 0; bottom: 0; left: 0; right: 0;";
indicator.setAttribute("style", style);
doc.body.appendChild(indicator);
// remove the frame indicator
setTimeout(function() { doc.body.removeChild(indicator); }, 500);
}
catch (e)
else
{
// FIXME: fail silently here for now
//vimperator.log(e);
if (count > 1)
next = current - count;
else
next--;
if (next < 0)
{
if (current == 0)
vimperator.beep(); // still allow the frame indicator to be activated
next = 0;
}
}
// focus next frame and scroll into view
frames[next].focus();
if (frames[next] != window.content)
frames[next].frameElement.scrollIntoView(false);
// add the frame indicator
// TODO: make this an XBL element rather than messing with the content
// document
var doc = frames[next].document;
var indicator = doc.createElement("div");
indicator.id = "vimperator-frame-indicator";
// NOTE: need to set a high z-index - it's a crapshoot!
var style = "background-color: red; opacity: 0.5; z-index: 999;" +
"position: fixed; top: 0; bottom: 0; left: 0; right: 0;";
indicator.setAttribute("style", style);
doc.body.appendChild(indicator);
// remove the frame indicator
setTimeout(function() { doc.body.removeChild(indicator); }, 500);
}
// updates the buffer preview in place only if list is visible