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Toggle the info pane when clicking the info icon (#587550)

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Now clicking on the information icon of the same item a second
time will hide the details pane. Clicking it another time will
show it again, etc.

This is achieved by adding a 'toggle-details' signal which
switches the visibility of the details pane.

Other than the necessary changes, function _selectIndex (in
genericDisplay.js) has been restructured a bit to avoid
duplicating checks.
This commit is contained in:
Siegfried-Angel Gevatter Pujals
2009-07-29 19:35:11 +02:00
parent 119516424d
commit 77c92d75d5
2 changed files with 37 additions and 14 deletions
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38
js/ui/genericDisplay.js
View File

@ -796,29 +796,39 @@ GenericDisplay.prototype = {
// Selects (e.g. highlights) a display item at the provided index,
// updates this.selectedItemDetails actor, and emits 'selected' signal.
_selectIndex: function(index) {
let count = this._list.displayedCount;
if (index >= this._list.displayedCount)
return
// If the item is already selected, all we do is toggling the details pane.
if (this._selectedIndex == index && index >= 0) {
this.emit('toggle-details');
return;
}
// Cleanup from the previous item
if (this._selectedIndex >= 0) {
let prev = this._findDisplayedByIndex(this._selectedIndex);
prev.markSelected(false);
this._findDisplayedByIndex(this._selectedIndex).markSelected(false);
// Calling destroy() gets large image previews released as quickly as
// possible, if we just removed them, they might hang around for a while
// until the actor was garbage collected.
let children = this.selectedItemDetails.get_children();
for (let i = 0; i < children.length; i++)
children[i].destroy();
this.selectedItemDetails.remove_all();
}
if (index < count) {
this._selectedIndex = index;
if (index >= 0) {
let item = this._findDisplayedByIndex(index);
item.markSelected(true);
this.selectedItemDetails.append(item.createDetailsActor(this._availableWidthForItemDetails,
this._availableHeightForItemDetails), Big.BoxPackFlags.NONE);
this.emit('selected');
}
}
this._selectedIndex = index;
if (index < 0)
return
// Mark the new item as selected and create its details pane
let item = this._findDisplayedByIndex(index);
item.markSelected(true);
this.selectedItemDetails.append(item.createDetailsActor(this._availableWidthForItemDetails,
this._availableHeightForItemDetails), Big.BoxPackFlags.NONE);
this.emit('selected');
}
};