diff options
Diffstat (limited to 'content_scripts/mode_visual.coffee')
| -rw-r--r-- | content_scripts/mode_visual.coffee | 515 |
1 files changed, 162 insertions, 353 deletions
diff --git a/content_scripts/mode_visual.coffee b/content_scripts/mode_visual.coffee index cca305f8..20560298 100644 --- a/content_scripts/mode_visual.coffee +++ b/content_scripts/mode_visual.coffee @@ -1,113 +1,17 @@ -# -# The main modes defined here are: -# - VisualMode -# - VisualLineMode -# - CaretMode -# -# SuppressPrintable and CountPrefix are shared utility base classes. -# Movement is a shared vim-like movement base class. -# -# The class inheritance hierarchy is: -# - Mode, SuppressPrintable, CountPrefix, Movement, [ VisualMode | CaretMode ] -# - Mode, SuppressPrintable, CountPrefix, Movement, VisualMode, VisualLineMode -# -# The possible mode states are: -# - ..., VisualMode -# - ..., VisualLineMode -# - ..., CaretMode -# - ..., VisualMode, FindMode -# - ..., VisualLineMode, FindMode -# - ..., CaretMode, FindMode -# - -# This prevents printable characters from being passed through to underlying modes or the underlying page. -class SuppressPrintable extends Mode - constructor: (options = {}) -> - handler = (event) => - return @stopBubblingAndTrue if not KeyboardUtils.isPrintable event - return @suppressEvent if event.type != "keydown" - # Completely suppress Backspace and Delete, they change the selection. - return @suppressEvent if event.keyCode in [ keyCodes.backspace, keyCodes.deleteKey ] - # Suppress propagation (but not preventDefault) for keydown, printable events. - DomUtils.suppressPropagation event - @stopBubblingAndFalse - - super extend options, keydown: handler, keypress: handler, keyup: handler - -# This monitors keypresses and maintains the count prefix. -class CountPrefix extends SuppressPrintable - constructor: (options) -> - @countPrefix = "" - # This is an initial multiplier for the first count. - @countPrefixFactor = options.initialCountPrefix || 1 - super options - - @push - _name: "#{@id}/count-prefix" - keypress: (event) => - @alwaysContinueBubbling => - unless event.metaKey or event.ctrlKey or event.altKey - keyChar = String.fromCharCode event.charCode - @countPrefix = - if keyChar.length == 1 and "0" <= keyChar <= "9" and @countPrefix + keyChar != "0" - @countPrefix + keyChar - else - "" - - getCountPrefix: -> - count = @countPrefixFactor * (if 0 < @countPrefix.length then parseInt @countPrefix else 1) - @countPrefix = ""; @countPrefixFactor = 1 - count - # Symbolic names for some common strings. -forward = "forward" -backward = "backward" -character = "character" -word = "word" -line = "line" -sentence = "sentence" -paragraph = "paragraph" -vimword = "vimword" -lineboundary= "lineboundary" - -# This implements vim-like movements, and includes quite a number of gereral utility methods. -class Movement extends CountPrefix - opposite: forward: backward, backward: forward +forward = "forward"; backward = "backward"; character = "character"; word = "word"; line = "line" +sentence = "sentence"; paragraph = "paragraph"; vimword = "vimword"; lineboundary= "lineboundary" - # Paste from clipboard. - paste: (callback) -> - chrome.runtime.sendMessage handler: "pasteFromClipboard", (response) -> callback response - - # Copy to clipboard. - copy: (text, isFinalUserCopy = false) -> - chrome.runtime.sendMessage handler: "copyToClipboard", data: text - # If isFinalUserCopy is set, then we're copying the final text selected by the user (and exiting). - # However, @protectClipboard may later try to restore the original clipboard contents. Therefore, we - # disable copy so that subsequent copies do not propagate. - @copy = (->) if isFinalUserCopy - - # This is used whenever manipulating the selection may, as a side effect, change the clipboard's contents. - # We restore the original clipboard contents when we're done. May be asynchronous. We use a lock so that - # calls can be nested. - protectClipboard: do -> - locked = false - - (func) -> - if locked then func() - else - locked = true - @paste (text) => - func(); @copy text; locked = false +# This implements various selection movements. +class Movement + opposite: forward: backward, backward: forward - # Replace the current mode with another. For example, replace caret mode with visual mode, or replace visual - # mode with visual-line mode. - changeMode: (mode, options = {}) -> - @exit() - new mode options + constructor: (@alterMethod) -> + @selection = window.getSelection() - # Return the character following (to the right of) the focus, and leave the selection unchanged. Returns - # undefined if no such character exists. + # Return the character following (to the right of) the focus, and leave the selection unchanged, or return + # undefined. getNextForwardCharacter: -> beforeText = @selection.toString() if beforeText.length == 0 or @getDirection() == forward @@ -117,7 +21,7 @@ class Movement extends CountPrefix @selection.modify "extend", backward, character afterText[afterText.length - 1] else - beforeText[0] # Existing range selection is backwards. + beforeText[0] # The existing range selection is backwards. # As above, but backwards. getNextBackwardCharacter: -> @@ -129,25 +33,25 @@ class Movement extends CountPrefix @selection.modify "extend", forward, character afterText[0] else - beforeText[beforeText.length - 1] # Existing range selection is forwards. + beforeText[beforeText.length - 1] # The existing range selection is forwards. # Test whether the character following the focus is a word character (and leave the selection unchanged). nextCharacterIsWordCharacter: do -> regexp = null -> - # This regexp matches "word" characters (apparently in any language). - # From http://stackoverflow.com/questions/150033/regular-expression-to-match-non-english-characters + # This regexp matches "word" characters. + # From http://stackoverflow.com/questions/150033/regular-expression-to-match-non-english-characters. regexp || = /[_0-9\u0041-\u005A\u0061-\u007A\u00AA\u00B5\u00BA\u00C0-\u00D6\u00D8-\u00F6\u00F8-\u02C1\u02C6-\u02D1\u02E0-\u02E4\u02EC\u02EE\u0370-\u0374\u0376\u0377\u037A-\u037D\u0386\u0388-\u038A\u038C\u038E-\u03A1\u03A3-\u03F5\u03F7-\u0481\u048A-\u0527\u0531-\u0556\u0559\u0561-\u0587\u05D0-\u05EA\u05F0-\u05F2\u0620-\u064A\u066E\u066F\u0671-\u06D3\u06D5\u06E5\u06E6\u06EE\u06EF\u06FA-\u06FC\u06FF\u0710\u0712-\u072F\u074D-\u07A5\u07B1\u07CA-\u07EA\u07F4\u07F5\u07FA\u0800-\u0815\u081A\u0824\u0828\u0840-\u0858\u08A0\u08A2-\u08AC\u0904-\u0939\u093D\u0950\u0958-\u0961\u0971-\u0977\u0979-\u097F\u0985-\u098C\u098F\u0990\u0993-\u09A8\u09AA-\u09B0\u09B2\u09B6-\u09B9\u09BD\u09CE\u09DC\u09DD\u09DF-\u09E1\u09F0\u09F1\u0A05-\u0A0A\u0A0F\u0A10\u0A13-\u0A28\u0A2A-\u0A30\u0A32\u0A33\u0A35\u0A36\u0A38\u0A39\u0A59-\u0A5C\u0A5E\u0A72-\u0A74\u0A85-\u0A8D\u0A8F-\u0A91\u0A93-\u0AA8\u0AAA-\u0AB0\u0AB2\u0AB3\u0AB5-\u0AB9\u0ABD\u0AD0\u0AE0\u0AE1\u0B05-\u0B0C\u0B0F\u0B10\u0B13-\u0B28\u0B2A-\u0B30\u0B32\u0B33\u0B35-\u0B39\u0B3D\u0B5C\u0B5D\u0B5F-\u0B61\u0B71\u0B83\u0B85-\u0B8A\u0B8E-\u0B90\u0B92-\u0B95\u0B99\u0B9A\u0B9C\u0B9E\u0B9F\u0BA3\u0BA4\u0BA8-\u0BAA\u0BAE-\u0BB9\u0BD0\u0C05-\u0C0C\u0C0E-\u0C10\u0C12-\u0C28\u0C2A-\u0C33\u0C35-\u0C39\u0C3D\u0C58\u0C59\u0C60\u0C61\u0C85-\u0C8C\u0C8E-\u0C90\u0C92-\u0CA8\u0CAA-\u0CB3\u0CB5-\u0CB9\u0CBD\u0CDE\u0CE0\u0CE1\u0CF1\u0CF2\u0D05-\u0D0C\u0D0E-\u0D10\u0D12-\u0D3A\u0D3D\u0D4E\u0D60\u0D61\u0D7A-\u0D7F\u0D85-\u0D96\u0D9A-\u0DB1\u0DB3-\u0DBB\u0DBD\u0DC0-\u0DC6\u0E01-\u0E30\u0E32\u0E33\u0E40-\u0E46\u0E81\u0E82\u0E84\u0E87\u0E88\u0E8A\u0E8D\u0E94-\u0E97\u0E99-\u0E9F\u0EA1-\u0EA3\u0EA5\u0EA7\u0EAA\u0EAB\u0EAD-\u0EB0\u0EB2\u0EB3\u0EBD\u0EC0-\u0EC4\u0EC6\u0EDC-\u0EDF\u0F00\u0F40-\u0F47\u0F49-\u0F6C\u0F88-\u0F8C\u1000-\u102A\u103F\u1050-\u1055\u105A-\u105D\u1061\u1065\u1066\u106E-\u1070\u1075-\u1081\u108E\u10A0-\u10C5\u10C7\u10CD\u10D0-\u10FA\u10FC-\u1248\u124A-\u124D\u1250-\u1256\u1258\u125A-\u125D\u1260-\u1288\u128A-\u128D\u1290-\u12B0\u12B2-\u12B5\u12B8-\u12BE\u12C0\u12C2-\u12C5\u12C8-\u12D6\u12D8-\u1310\u1312-\u1315\u1318-\u135A\u1380-\u138F\u13A0-\u13F4\u1401-\u166C\u166F-\u167F\u1681-\u169A\u16A0-\u16EA\u1700-\u170C\u170E-\u1711\u1720-\u1731\u1740-\u1751\u1760-\u176C\u176E-\u1770\u1780-\u17B3\u17D7\u17DC\u1820-\u1877\u1880-\u18A8\u18AA\u18B0-\u18F5\u1900-\u191C\u1950-\u196D\u1970-\u1974\u1980-\u19AB\u19C1-\u19C7\u1A00-\u1A16\u1A20-\u1A54\u1AA7\u1B05-\u1B33\u1B45-\u1B4B\u1B83-\u1BA0\u1BAE\u1BAF\u1BBA-\u1BE5\u1C00-\u1C23\u1C4D-\u1C4F\u1C5A-\u1C7D\u1CE9-\u1CEC\u1CEE-\u1CF1\u1CF5\u1CF6\u1D00-\u1DBF\u1E00-\u1F15\u1F18-\u1F1D\u1F20-\u1F45\u1F48-\u1F4D\u1F50-\u1F57\u1F59\u1F5B\u1F5D\u1F5F-\u1F7D\u1F80-\u1FB4\u1FB6-\u1FBC\u1FBE\u1FC2-\u1FC4\u1FC6-\u1FCC\u1FD0-\u1FD3\u1FD6-\u1FDB\u1FE0-\u1FEC\u1FF2-\u1FF4\u1FF6-\u1FFC\u2071\u207F\u2090-\u209C\u2102\u2107\u210A-\u2113\u2115\u2119-\u211D\u2124\u2126\u2128\u212A-\u212D\u212F-\u2139\u213C-\u213F\u2145-\u2149\u214E\u2183\u2184\u2C00-\u2C2E\u2C30-\u2C5E\u2C60-\u2CE4\u2CEB-\u2CEE\u2CF2\u2CF3\u2D00-\u2D25\u2D27\u2D2D\u2D30-\u2D67\u2D6F\u2D80-\u2D96\u2DA0-\u2DA6\u2DA8-\u2DAE\u2DB0-\u2DB6\u2DB8-\u2DBE\u2DC0-\u2DC6\u2DC8-\u2DCE\u2DD0-\u2DD6\u2DD8-\u2DDE\u2E2F\u3005\u3006\u3031-\u3035\u303B\u303C\u3041-\u3096\u309D-\u309F\u30A1-\u30FA\u30FC-\u30FF\u3105-\u312D\u3131-\u318E\u31A0-\u31BA\u31F0-\u31FF\u3400-\u4DB5\u4E00-\u9FCC\uA000-\uA48C\uA4D0-\uA4FD\uA500-\uA60C\uA610-\uA61F\uA62A\uA62B\uA640-\uA66E\uA67F-\uA697\uA6A0-\uA6E5\uA717-\uA71F\uA722-\uA788\uA78B-\uA78E\uA790-\uA793\uA7A0-\uA7AA\uA7F8-\uA801\uA803-\uA805\uA807-\uA80A\uA80C-\uA822\uA840-\uA873\uA882-\uA8B3\uA8F2-\uA8F7\uA8FB\uA90A-\uA925\uA930-\uA946\uA960-\uA97C\uA984-\uA9B2\uA9CF\uAA00-\uAA28\uAA40-\uAA42\uAA44-\uAA4B\uAA60-\uAA76\uAA7A\uAA80-\uAAAF\uAAB1\uAAB5\uAAB6\uAAB9-\uAABD\uAAC0\uAAC2\uAADB-\uAADD\uAAE0-\uAAEA\uAAF2-\uAAF4\uAB01-\uAB06\uAB09-\uAB0E\uAB11-\uAB16\uAB20-\uAB26\uAB28-\uAB2E\uABC0-\uABE2\uAC00-\uD7A3\uD7B0-\uD7C6\uD7CB-\uD7FB\uF900-\uFA6D\uFA70-\uFAD9\uFB00-\uFB06\uFB13-\uFB17\uFB1D\uFB1F-\uFB28\uFB2A-\uFB36\uFB38-\uFB3C\uFB3E\uFB40\uFB41\uFB43\uFB44\uFB46-\uFBB1\uFBD3-\uFD3D\uFD50-\uFD8F\uFD92-\uFDC7\uFDF0-\uFDFB\uFE70-\uFE74\uFE76-\uFEFC\uFF21-\uFF3A\uFF41-\uFF5A\uFF66-\uFFBE\uFFC2-\uFFC7\uFFCA-\uFFCF\uFFD2-\uFFD7\uFFDA-\uFFDC]/ regexp.test @getNextForwardCharacter() # Run a movement. This is the core movement method, all movements happen here. For convenience, the # following three argument forms are supported: # @runMovement "forward word" - # @runMovement [ "forward", "word" ] + # @runMovement ["forward", "word"] # @runMovement "forward", "word" # # The granularities are word, "character", "line", "lineboundary", "sentence" and "paragraph". In addition, - # we implement the pseudo granularity "vimword", which implements vim-like word movement (for "w"). + # we implement the pseudo granularity "vimword", which implements vim-like word movement (e.g. "w"). # runMovement: (args...) -> # Normalize the various argument forms. @@ -180,10 +84,10 @@ class Movement extends CountPrefix # Return a simple camparable value which depends on various aspects of the selection. This is used to # detect, after a movement, whether the selection has changed. - hashSelection: (debug) -> + hashSelection: -> range = @selection.getRangeAt(0) - [ @element?.selectionStart, @selection.toString().length, range.anchorOffset, range.focusOffset, - @selection.extentOffset, @selection.baseOffset ].join "/" + [ @selection.toString().length, range.anchorOffset, range.focusOffset, @selection.extentOffset, + @selection.baseOffset ].join "/" # Call a function; return true if the selection changed, false otherwise. selectionChanged: (func) -> @@ -201,13 +105,13 @@ class Movement extends CountPrefix direction = @getDirection() element = document.activeElement if element and DomUtils.isEditable(element) and not element.isContentEditable - # Note(smblott). This implementation is unacceptably expensive if the selection is large. We only use - # it here because the normal method (below) does not work for simple text inputs. + # Note(smblott). This implementation is expensive if the selection is large. We only use it here + # because the normal method (below) does not work within text areas, etc. length = @selection.toString().length @collapseSelectionToFocus() @runMovement @opposite[direction], character for [0...length] else - # Normal method (efficient). + # Normal method. original = @selection.getRangeAt(0).cloneRange() range = original.cloneRange() range.collapse direction == backward @@ -215,7 +119,7 @@ class Movement extends CountPrefix which = if direction == forward then "start" else "end" @selection.extend original["#{which}Container"], original["#{which}Offset"] - # Try to extend the selection one character in direction. Return positive, negative or 0, indicating + # Try to extend the selection by one character in direction. Return positive, negative or 0, indicating # whether the selection got bigger, or smaller, or is unchanged. extendByOneCharacter: (direction) -> length = @selection.toString().length @@ -225,7 +129,7 @@ class Movement extends CountPrefix # Get the direction of the selection. The selection is "forward" if the focus is at or after the anchor, # and "backward" otherwise. # NOTE(smblott). This could be better, see: https://dom.spec.whatwg.org/#interface-range (however, that - # probably wouldn't work for text inputs). + # probably wouldn't work for inputs). getDirection: -> # Try to move the selection forward or backward, check whether it got bigger or smaller (then restore it). for direction in [ forward, backward ] @@ -246,8 +150,33 @@ class Movement extends CountPrefix @selection.removeAllRanges() @selection.addRange range - # A movement can be either a string (which will be passed to @runMovement count times), or a function (which - # will be called once with count as its argument). + # For "aw", "as". We don't do "ap" (for paragraphs), because Chrome paragraph movements are weird. + selectLexicalEntity: (entity, count = 1) -> + @collapseSelectionToFocus() + @runMovement [ forward, character ] if entity == word # This makes word movements a bit more vim-like. + @runMovement [ backward, entity ] + @collapseSelectionToFocus() + @runMovement [ forward, entity ] for [0...count] by 1 + + selectLine: (count) -> + # Even under caret mode, we still need an extended selection here. + @alterMethod = "extend" + @reverseSelection() if @getDirection() == forward + @runMovement backward, lineboundary + @reverseSelection() + @runMovement forward, line for [1...count] by 1 + @runMovement forward, lineboundary + # Include the next character if that character is a newline. + @runMovement forward, character if @getNextForwardCharacter() == "\n" + + # Scroll the focus into view. + scrollIntoView: -> + unless @selection.type == "None" + elementWithFocus = DomUtils.getElementWithFocus @selection, @getDirection() == backward + Scroller.scrollIntoView elementWithFocus if elementWithFocus + +class VisualMode extends KeyHandlerMode + # A movement can be either a string or a function. movements: "l": "forward character" "h": "backward character" @@ -264,179 +193,60 @@ class Movement extends CountPrefix "$": "forward lineboundary" "G": "forward documentboundary" "gg": "backward documentboundary" - "Y": (count) -> @selectLine count; @yank() - - # This handles a movement, but protects to selection while doing so. - runMovementKeyChar: (args...) -> - @protectClipboard => @handleMovementKeyChar args... - - # Handle a single movement keyChar. This is extended (wrapped) by super-classes. - handleMovementKeyChar: (keyChar, count = 1) -> - switch typeof @movements[keyChar] - when "string" then @runMovement @movements[keyChar] for [0...count] - when "function" then @movements[keyChar].call this, count - @scrollIntoView() - - constructor: (options) -> - @selection = window.getSelection() - @movements = extend {}, @movements - @commands = {} - @keyQueue = "" - super options - - # Aliases. - @movements.B = @movements.b - @movements.W = @movements.w - - # This is the main keyboard-event handler for movements and commands for all user modes (visual, - # visual-line and caret). - @push - _name: "#{@id}/keypress" - keypress: (event) => - unless event.metaKey or event.ctrlKey or event.altKey - @keyQueue += String.fromCharCode event.charCode - # Keep at most two keyChars in the queue. - @keyQueue = @keyQueue.slice Math.max 0, @keyQueue.length - 2 - for command in [ @keyQueue, @keyQueue[1..] ] - if command and (@movements[command] or @commands[command]) - @selection = window.getSelection() - @keyQueue = "" - - # We need to treat "0" specially. It can be either a movement, or a continutation of a count - # prefix. Don't treat it as a movement if we already have an initial count prefix. - return @continueBubbling if command == "0" and 0 < @countPrefix.length - - if @commands[command] - @commands[command].call this, @getCountPrefix() - @scrollIntoView() - return @suppressEvent - - else if @movements[command] - @runMovementKeyChar command, @getCountPrefix() - return @suppressEvent - - @continueBubbling - - # Install basic bindings for find mode, "n" and "N". - do => - doFind = (count, backwards) => - initialRange = @selection.getRangeAt(0).cloneRange() - for [0...count] by 1 - unless FindMode.execute null, {colorSelection: false, backwards} - @setSelectionRange initialRange - HUD.showForDuration("No matches for '#{FindMode.query.rawQuery}'", 1000) - return - # The find was successfull. If we're in caret mode, then we should now have a selection, so we can - # drop back into visual mode. - @changeMode VisualMode if @name == "caret" and 0 < @selection.toString().length - - @movements.n = (count) -> doFind count, false - @movements.N = (count) -> doFind count, true - @movements["/"] = -> - @findMode = new FindMode returnToViewport: true - @findMode.onExit => @changeMode VisualMode - # - # End of Movement constructor. - - # Yank the selection; always exits; either deletes the selection or collapses it; set @yankedText and return - # it. - yank: (args = {}) -> - @yankedText = @selection.toString() - @selection.collapseToStart() - - message = @yankedText.replace /\s+/g, " " - message = message[...12] + "..." if 15 < @yankedText.length - plural = if @yankedText.length == 1 then "" else "s" - - @exit() - HUD.showForDuration "Yanked #{@yankedText.length} character#{plural}: \"#{message}\".", 2500 - @yankedText - exit: (event, target) -> - @selection.collapseToStart() if event?.type == "keydown" and KeyboardUtils.isEscape event - super event, target + "aw": (count) -> @movement.selectLexicalEntity word, count + "as": (count) -> @movement.selectLexicalEntity sentence, count - # For "daw", "das", and so on. We select a lexical entity (a word, a sentence or a paragraph). - # Note(smblott). It would be better if the entities could be handled symmetrically. Unfortunately, they - # cannot, and we have to handle each case individually. - selectLexicalEntity: (entity, count = 1) -> + "n": (count) -> @find count, false + "N": (count) -> @find count, true + "/": -> + @exit() + new FindMode(returnToViewport: true).onExit => new VisualMode - switch entity - when word - if @nextCharacterIsWordCharacter() - @runMovements [ forward, character ], [ backward, word ] - @collapseSelectionToFocus() - @runMovements ([0...count].map -> [ forward, vimword ])... - - when sentence - @runMovements [ forward, character ], [ backward, sentence ] - @collapseSelectionToFocus() - @runMovements ([0...count].map -> [ forward, sentence ])... - - when paragraph - # Chrome's paragraph movements are weird: they're not symmetrical, and tend to stop in odd places - # (like mid-paragraph, for example). Here, we define a paragraph as a new-line delimited entity, - # including the terminating newline. - # Note(smblott). This does not currently use the count. - char = @getNextBackwardCharacter() - while char? and char != "\n" - return unless @runMovements [ backward, character ], [ backward, lineboundary ] - char = @getNextBackwardCharacter() - @collapseSelectionToFocus() - char = @getNextForwardCharacter() - while char? and char != "\n" - return unless @runMovements [ forward, character ], [ forward, lineboundary ] - char = @getNextForwardCharacter() - @runMovement forward, character + "y": -> @yank() + "Y": (count) -> @movement.selectLine count; @yank() + "p": -> chrome.runtime.sendMessage handler: "openUrlInCurrentTab", url: @yank() + "P": -> chrome.runtime.sendMessage handler: "openUrlInNewTab", url: @yank() + "v": -> new VisualMode + "V": -> new VisualLineMode + "c": -> @movement.collapseSelectionToAnchor(); new CaretMode + "o": -> @movement.reverseSelection() - # Scroll the focus into view. - scrollIntoView: -> - @protectClipboard => - if @element and DomUtils.isEditable @element - if @element.clientHeight < @element.scrollHeight - if @element.isContentEditable - elementWithFocus = DomUtils.getElementWithFocus @selection, @getDirection() == backward - position = elementWithFocus.getClientRects()[0].bottom - @element.getClientRects()[0].top - @element.clientHeight + @element.scrollTop - Scroller.scrollToPosition @element, position, 0 - else - position = if @getDirection() == backward then @element.selectionStart else @element.selectionEnd - coords = DomUtils.getCaretCoordinates @element, position - Scroller.scrollToPosition @element, coords.top, coords.left - else - unless @selection.type == "None" - elementWithFocus = DomUtils.getElementWithFocus @selection, @getDirection() == backward - Scroller.scrollIntoView elementWithFocus if elementWithFocus + # TODO(smblott): "aw", etc. + # TODO(smblott): simplify singletons. -class VisualMode extends Movement constructor: (options = {}) -> - @alterMethod = "extend" + @movement = new Movement options.alterMethod ? "extend" + @selection = @movement.selection + + # Build the key mapping structure required by KeyHandlerMode. This only handles one- and two-key + # mappings. + keyMapping = {} + for own keys, movement of @movements + movement = movement.bind this if "function" == typeof movement + if keys.length == 1 + keyMapping[keys] = command: movement + else # keys.length == 2 + keyMapping[keys[0]] ?= {} + extend keyMapping[keys[0]], "#{keys[1]}": command: movement - defaults = - name: "visual" - indicator: if options.indicator? then options.indicator else "Visual mode" + # Aliases. + extend keyMapping, "B": keyMapping.b, "W": keyMapping.w + + super extend options, + name: options.name ? "visual" + indicator: options.indicator ? "Visual mode" singleton: VisualMode exitOnEscape: true - super extend defaults, options - - # Establish or use the initial selection. If that's not possible, then enter caret mode. - if @selection.type in [ "Caret", "Range" ] - selectionRect = @selection.getRangeAt(0).getBoundingClientRect() - selectionRect = Rect.intersect selectionRect, (Rect.create 0, 0, window.innerWidth, - window.innerHeight) - if selectionRect.height >= 0 and selectionRect.width >= 0 - # The selection is visible in the current viewport. - if @selection.type == "Caret" - # The caret is in the viewport. Make make it visible. - @extendByOneCharacter(forward) or @extendByOneCharacter backward - else - # The selection is outside of the viewport: clear it. We guess that the user has moved on, and is - # more likely to be interested in visible content. - @selection.removeAllRanges() + suppressAllKeyboardEvents: true + keyMapping: keyMapping + commandHandler: @commandHandler.bind this - if @selection.type != "Range" - @changeMode CaretMode - HUD.showForDuration "No usable selection, entering caret mode...", 2500 - return + @onExit (event = null) => + @movement.collapseSelectionToAnchor() + # Don't leave the user in insert mode just because they happen to have selected an input. + if document.activeElement and DomUtils.isEditable document.activeElement + document.activeElement.blur() unless event?.type == "click" @push _name: "#{@id}/enter/click" @@ -448,67 +258,78 @@ class VisualMode extends Movement return @suppressEvent @continueBubbling # Click in a focusable element exits. - click: (event) => - @alwaysContinueBubbling => - @exit event, event.target if DomUtils.isFocusable event.target - - # Visual-mode commands. - @commands.y = -> @yank() - @commands.p = -> chrome.runtime.sendMessage handler: "openUrlInCurrentTab", url: @yank() - @commands.P = -> chrome.runtime.sendMessage handler: "openUrlInNewTab", url: @yank() - @commands.V = -> @changeMode VisualLineMode - @commands.c = -> @collapseSelectionToFocus(); @changeMode CaretMode - @commands.o = -> @reverseSelection() - - # - # End of VisualMode constructor. - - exit: (event, target) -> - # Don't leave the user in insert mode just because they happen to have selected text within an input - # element. - if document.activeElement and DomUtils.isEditable document.activeElement - document.activeElement.blur() unless event?.type == "click" - - super event, target - if @yankedText? - console.log "yank:", @yankedText if @debug - @copy @yankedText, true + click: (event) => @alwaysContinueBubbling => + @exit event if DomUtils.isFocusable event.target - selectLine: (count) -> - @reverseSelection() if @getDirection() == forward - @runMovement backward, lineboundary - @reverseSelection() - @runMovement forward, line for [1...count] - @runMovement forward, lineboundary - # Include the next character if it is a newline. - @runMovement forward, character if @getNextForwardCharacter() == "\n" + # Establish or use the initial selection. If that's not possible, then enter caret mode. + unless @name == "caret" + if @selection.type in [ "Caret", "Range" ] + selectionRect = @selection.getRangeAt(0).getBoundingClientRect() + selectionRect = Rect.intersect selectionRect, Rect.create 0, 0, window.innerWidth, window.innerHeight + if selectionRect.height >= 0 and selectionRect.width >= 0 + # The selection is visible in the current viewport. + if @selection.type == "Caret" + # The caret is in the viewport. Make make it visible. + @movement.extendByOneCharacter(forward) or @movement.extendByOneCharacter backward + else + # The selection is outside of the viewport: clear it. We guess that the user has moved on, and is + # more likely to be interested in visible content. + @selection.removeAllRanges() + + if @selection.type != "Range" and @name != "caret" + new CaretMode + HUD.showForDuration "No usable selection, entering caret mode...", 2500 + + commandHandler: ({command: {command}, count}) -> + switch typeof command + when "string" + @movement.runMovement command for [0...count] by 1 + when "function" + command count + return # Prevent CoffeeScript building an array (for the "string" case, above). + + find: (count, backwards) => + initialRange = @selection.getRangeAt(0).cloneRange() + for [0...count] by 1 + unless FindMode.execute null, {colorSelection: false, backwards} + @movement.setSelectionRange initialRange + HUD.showForDuration("No matches for '#{FindMode.query.rawQuery}'", 1000) + return + # The find was successfull. If we're in caret mode, then we should now have a selection, so we can + # drop back into visual mode. + new VisualMode if @name == "caret" and 0 < @selection.toString().length + + # Yank the selection; always exits; collapses the selection; set @yankedText and return it. + yank: (args = {}) -> + @yankedText = @selection.toString() + @exit() + chrome.runtime.sendMessage handler: "copyToClipboard", data: @yankedText + + message = @yankedText.replace /\s+/g, " " + message = message[...12] + "..." if 15 < @yankedText.length + plural = if @yankedText.length == 1 then "" else "s" + HUD.showForDuration "Yanked #{@yankedText.length} character#{plural}: \"#{message}\".", 2500 + + @yankedText class VisualLineMode extends VisualMode constructor: (options = {}) -> - super extend { name: "visual/line", indicator: "Visual mode (line)" }, options + super extend options, name: "visual/line", indicator: "Visual mode (line)" @extendSelection() - @commands.v = -> @changeMode VisualMode - handleMovementKeyChar: (args...) -> + commandHandler: (args...) -> super args... - @extendSelection() + @extendSelection() if @modeIsActive extendSelection: -> - initialDirection = @getDirection() - for direction in [ initialDirection, @opposite[initialDirection] ] - @runMovement direction, lineboundary - @reverseSelection() + initialDirection = @movement.getDirection() + for direction in [ initialDirection, @movement.opposite[initialDirection] ] + @movement.runMovement direction, lineboundary + @movement.reverseSelection() -class CaretMode extends Movement +class CaretMode extends VisualMode constructor: (options = {}) -> - @alterMethod = "move" - - defaults = - name: "caret" - indicator: "Caret mode" - singleton: VisualMode - exitOnEscape: true - super extend defaults, options + super extend options, name: "caret", indicator: "Caret mode", alterMethod: "move" # Establish the initial caret. switch @selection.type @@ -519,27 +340,15 @@ class CaretMode extends Movement HUD.showForDuration "Create a selection before entering visual mode.", 2500 return when "Range" - @collapseSelectionToAnchor() - - @selection.modify "extend", forward, character - @scrollIntoView() - - @push - _name: "#{@id}/click" - # Click in a focusable element exits. - click: (event) => - @alwaysContinueBubbling => - @exit event, event.target if DomUtils.isFocusable event.target + @movement.collapseSelectionToAnchor() - # Commands to exit caret mode, and enter visual mode. - extend @commands, - v: -> @changeMode VisualMode - V: -> @changeMode VisualLineMode + @movement.extendByOneCharacter forward + @movement.scrollIntoView() - handleMovementKeyChar: (args...) -> - @collapseSelectionToAnchor() + commandHandler: (args...) -> + @movement.collapseSelectionToAnchor() super args... - @selection.modify "extend", forward, character + @movement.extendByOneCharacter forward if @modeIsActive # When visual mode starts and there's no existing selection, we launch CaretMode and try to establish a # selection. As a heuristic, we pick the first non-whitespace character of the first visible text node @@ -558,7 +367,7 @@ class CaretMode extends Movement range = document.createRange() range.setStart node, offset range.setEnd node, offset - @setSelectionRange range + @movement.setSelectionRange range return true false |