diff options
Diffstat (limited to 'content_scripts/link_hints.coffee')
| -rw-r--r-- | content_scripts/link_hints.coffee | 101 |
1 files changed, 82 insertions, 19 deletions
diff --git a/content_scripts/link_hints.coffee b/content_scripts/link_hints.coffee index 2548abb3..751aa12c 100644 --- a/content_scripts/link_hints.coffee +++ b/content_scripts/link_hints.coffee @@ -110,6 +110,7 @@ HintCoordinator = # The following messages are exchanged between frames while link-hints mode is active. updateKeyState: (request) -> @linkHintsMode.updateKeyState request + rotateHints: -> @linkHintsMode.rotateHints() setOpenLinkMode: ({modeIndex}) -> @linkHintsMode.setOpenLinkMode availableModes[modeIndex], false activateActiveHintMarker: -> @linkHintsMode.activateLink @linkHintsMode.markerMatcher.activeHintMarker getLocalHintMarker: (hint) -> if hint.frameId == frameId then @localHints[hint.localIndex] else null @@ -199,26 +200,33 @@ class LinkHintsMode # # Creates a link marker for the given link. # - createMarkerFor: (desc) -> - marker = - if desc.frameId == frameId - localHintDescriptor = HintCoordinator.getLocalHintMarker desc - el = DomUtils.createElement "div" - el.rect = localHintDescriptor.rect - el.style.left = el.rect.left + "px" - el.style.top = el.rect.top + "px" - extend el, - className: "vimiumReset internalVimiumHintMarker vimiumHintMarker" - showLinkText: localHintDescriptor.showLinkText - localHintDescriptor: localHintDescriptor - else - {} + createMarkerFor: do -> + # This is the starting z-index value; it produces z-index values which are greater than all of the other + # z-index values used by Vimium. + baseZIndex = 2140000000 + + (desc) -> + marker = + if desc.frameId == frameId + localHintDescriptor = HintCoordinator.getLocalHintMarker desc + el = DomUtils.createElement "div" + el.rect = localHintDescriptor.rect + el.style.left = el.rect.left + "px" + el.style.top = el.rect.top + "px" + # Each hint marker is assigned a different z-index. + el.style.zIndex = baseZIndex += 1 + extend el, + className: "vimiumReset internalVimiumHintMarker vimiumHintMarker" + showLinkText: localHintDescriptor.showLinkText + localHintDescriptor: localHintDescriptor + else + {} - extend marker, - hintDescriptor: desc - isLocalMarker: desc.frameId == frameId - linkText: desc.linkText - stableSortCount: ++@stableSortCount + extend marker, + hintDescriptor: desc + isLocalMarker: desc.frameId == frameId + linkText: desc.linkText + stableSortCount: ++@stableSortCount # Handles <Shift> and <Ctrl>. onKeyDownInMode: (event) -> @@ -274,6 +282,9 @@ class LinkHintsMode @tabCount = previousTabCount + (if event.shiftKey then -1 else 1) @updateVisibleMarkers @tabCount + else if event.keyCode == keyCodes.space and @markerMatcher.shouldRotateHints event + HintCoordinator.sendMessage "rotateHints" + else return @@ -310,6 +321,51 @@ class LinkHintsMode @setIndicator() + # Rotate the hints' z-index values so that hidden hints become visible. + rotateHints: do -> + markerOverlapsStack = (marker, stack) -> + for otherMarker in stack + return true if Rect.rectsOverlap marker.markerRect, otherMarker.markerRect + false + + -> + # Get local, visible hint markers. + localHintMarkers = @hintMarkers.filter (marker) -> + marker.isLocalMarker and marker.style.display != "none" + + # Fill in the markers' rects, if necessary. + marker.markerRect ?= marker.getClientRects()[0] for marker in localHintMarkers + + # Calculate the overlapping groups of hints. This is O(n^2) in the best case and O(n^3) in the worst + # case. + stacks = [] + for marker in localHintMarkers + stackForThisMarker = null + stacks = + for stack in stacks + markerOverlapsThisStack = markerOverlapsStack marker, stack + if markerOverlapsThisStack and not stackForThisMarker? + # We've found an existing stack for this marker. + stack.push marker + stackForThisMarker = stack + else if markerOverlapsThisStack and stackForThisMarker? + # This marker overlaps a second (or subsequent) stack; merge that stack into stackForThisMarker + # and discard it. + stackForThisMarker.push stack... + continue # Discard this stack. + else + stack # Keep this stack. + stacks.push [marker] unless stackForThisMarker? + + # Rotate the z-indexes within each stack. + for stack in stacks + if 1 < stack.length + zIndexes = (marker.style.zIndex for marker in stack) + zIndexes.push zIndexes[0] + marker.style.zIndex = zIndexes[index + 1] for marker, index in stack + + null # Prevent Coffeescript from building an unnecessary array. + # When only one hint remains, activate it in the appropriate way. The current frame may or may not contain # the matched link, and may or may not have the focus. The resulting four cases are accounted for here by # selectively pushing the appropriate HintCoordinator.onExit handlers. @@ -420,6 +476,9 @@ class AlphabetHints @hintKeystrokeQueue.push (if @useKeydown then keydownKeyChar else keyChar) popKeyChar: -> @hintKeystrokeQueue.pop() + # For alphabet hints, <Space> always rotates the hints, regardless of modifiers. + shouldRotateHints: -> true + # Use numbers (usually) for hints, and also filter links by their text. class FilterHints constructor: -> @@ -540,6 +599,10 @@ class FilterHints # them as if their length was 100 (so, quite long). score / Math.log 1 + (linkMarker.linkText.length || 100) + # For filtered hints, we require a modifier (because <Space> on its own is a token separator). + shouldRotateHints: (event) -> + event.ctrlKey or event.altKey or event.metaKey + # # Make each hint character a span, so that we can highlight the typed characters as you type them. # |