Bug 765057 - (Part 1) Refactor updateCacheFromRange and moveSelection to update the cache on each touchmove. r=mbrubeck

This commit is contained in:
Margaret Leibovic 2012-06-20 17:56:05 -07:00
parent 3b179ce1e4
commit 383581c1f7

View File

@ -1451,16 +1451,12 @@ var SelectionHandler = {
}
// Find the selected text rect and send it back so the handles can position correctly
if (selection.rangeCount == 0)
return;
let range = selection.getRangeAt(0);
if (!range)
if (selection.rangeCount == 0 || !selection.getRangeAt(0))
return;
// Initialize the cache
this.cache = {};
this.updateCacheFromRange(range);
this.updateCacheForSelection();
this.updateCacheOffset();
// Cache the selected text since the selection might be gone by the time we get the "end" message
@ -1520,21 +1516,9 @@ var SelectionHandler = {
let end = this._end.getBoundingClientRect();
cwu.sendMouseEventToWindow("mousedown", end.left + this.HANDLE_PADDING, end.top - this.HANDLE_VERTICAL_MARGIN, 0, 1, Ci.nsIDOMNSEvent.SHIFT_MASK, true);
cwu.sendMouseEventToWindow("mouseup", end.left + this.HANDLE_PADDING, end.top - this.HANDLE_VERTICAL_MARGIN, 0, 1, Ci.nsIDOMNSEvent.SHIFT_MASK, true);
},
finishMoveSelection: function sh_finishMoveSelection(aIsStartHandle) {
// Cache the selected text since the selection might be gone by the time we get the "end" message
let selection = this._view.getSelection();
this.selectedText = selection.toString().trim();
// Update the cache to match the new selection range
let range = selection.getRangeAt(0);
this.updateCacheFromRange(range);
this.updateCacheOffset();
// Adjust the handles to be in the correct spot relative to the text selection
this.positionHandles();
// Update the cached selection area
this.updateCacheForSelection();
},
// aX/aY are in top-level window browser coordinates
@ -1570,12 +1554,14 @@ var SelectionHandler = {
this.cache = null;
},
updateCacheFromRange: function sh_updateCacheFromRange(aRange) {
let rects = aRange.getClientRects();
updateCacheForSelection: function sh_updateCacheForSelection() {
let range = this._view.getSelection().getRangeAt(0);
let rects = range.getClientRects();
this.cache.start = { x: rects[0].left, y: rects[0].bottom };
this.cache.end = { x: rects[rects.length - 1].right, y: rects[rects.length - 1].bottom };
this.cache.rect = aRange.getBoundingClientRect();
this.cache.rect = range.getBoundingClientRect();
},
updateCacheOffset: function sh_updateCacheOffset() {
@ -1682,8 +1668,12 @@ var SelectionHandler = {
this._touchId = null;
this._touchDelta = null;
// Update the cached values after the dragging action is over
this.finishMoveSelection(isStartHandle);
// Update the cached selected text
let selection = this._view.getSelection();
this.selectedText = selection.toString().trim();
// Adjust the handles to be in the correct spot relative to the text selection
this.positionHandles();
break;
case "touchmove":