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Diffstat (limited to 'dist/bookmarklet/printliminator.js')
| -rw-r--r-- | dist/bookmarklet/printliminator.js | 700 |
1 files changed, 700 insertions, 0 deletions
diff --git a/dist/bookmarklet/printliminator.js b/dist/bookmarklet/printliminator.js new file mode 100644 index 0000000..d7d6eed --- /dev/null +++ b/dist/bookmarklet/printliminator.js @@ -0,0 +1,700 @@ +/* Printliminator v4.0.1 + * https://github.com/CSS-Tricks/The-Printliminator + */ +/*jshint expr:false */ +/*globals thePrintliminatorVars */ +;( function() { +'use strict'; + +var pl = window.thePrintliminator = { + + version : '4.0.1', + + // preprocess is used to echo in settings from options.json + css : { + hilite : '_printliminator_highlight', + fullWidth : '_printliminator_full_width', + hidden : '_printliminator_hidden', + // class name added to body when print styles applied (used in printliminator.css) + stylized : '_printliminator_stylized', + messages : '_printliminator_messages', + + noSelection: '_printliminator_no_selection', // class on body while dragging + // exposed in main document + stylesheet : '_printliminator_styles', // stylesheet ID + wrap : '_printliminator_wrap', + controls : '_printliminator_controls', + drag : '_printliminator_drag_icon', + dragActive : '_printliminator_drag_active', + // inside bookmarklet iframe + icon : 'icon', + noGraphics : 'no_graphics', + stylize : 'stylize', + print : 'print', + close : 'close', + undo : 'undo', + busy : 'busy', + keyboard : 'keyboard', + toggle : 'toggle' + + }, + + + keys : { + parent1 : 33, // pageUp + parent2 : 38, // up arrow + child1 : 34, // pageDown + child2 : 40, // down arrow + nextSib : 39, // right arrow + prevSib : 37, // left arrow + hide : 13, // enter + undo : 8, // backspace + fontUp : 107, // Numpad + + fontDown : 109, // Numpad - + fontReset : 106, // Numpad * + print : 44, // PrtScn (keyup only) + abort : 27, // Esc + + + // use event key below + opposite : 'altKey', // alt + click + fullWidth : 'shiftKey' // shift + click + }, + + // elements hidden when "remove graphics" is selected + noGraphics : 'img, iframe:not(._printliminator_controls), object, embed, audio, video, input[type=image], svg', + // elements to ignore while traversing + ignoredElm : /^(br|meta|style|link|script)$/i, + + // iframe height with keyboard open/closed + keyboardOpen : 615, + keyboardClosed : 220, + + // Bookmarklet popup - dragging parameters stored here + drag : { + el : null, + pos : [ 0, 0 ], + elm : [ 0, 0 ] + }, + + init : function() { + var el, + body = document.body; + + // need a global variable to store history & flags + if ( typeof window.thePrintliminatorVars === 'undefined' ) { + // use object separate from pl, otherwise these values get lost + // upon javascript injection a second time (after uses presses Esc) + window.thePrintliminatorVars = { + init : true, + history : [], + messageCache : [], + flags : {} + }; + + pl.addStyles(); + } + + + pl.addControls(); + + + // highlighting elements & keyboard binding + pl.addEvent( body, 'click', pl.bodyClick ); + pl.addEvent( body, 'mouseover', pl.bodyMouseover ); + pl.addEvent( body, 'mouseout', pl.removeHighlight ); + pl.addEvent( document, 'keyup', pl.bodyKeyUp ); + pl.addEvent( document, 'keydown', pl.bodyKeyDown ); + + // drag + pl.addEvent( document, 'mouseup', pl.docMouseUp ); + pl.addEvent( document, 'mousemove', pl.docMouseMove ); + }, + + // delegated event click + bodyClick : function( event ) { + event.preventDefault(); + event.stopImmediatePropagation(); + + if ( event.target.nodeName !== 'BODY' && !pl.hasClass( event.target, pl.css.messages ) ) { + var done, sel, + opposite = false, + msg = pl.messages, + hilite = document.body.querySelector( '.' + pl.css.hilite ); + + // Make 100% width & zero margins (set by css) + // Shift + click + if ( event[ pl.keys.fullWidth ] ) { + if ( !pl.hasClass( hilite, pl.css.fullWidth ) ) { + pl.addClass( hilite, pl.css.fullWidth ); + thePrintliminatorVars.history.push( function() { + pl.removeClass( hilite, pl.css.fullWidth ); + }); + } + } else { + // show opposite + // Alt + click + if ( event[ pl.keys.opposite ] ) { + done = pl.getOpposite( hilite ); + sel = done.length; + if ( sel ) { + opposite = true; + } else { + // nothing left to remove + return; + } + } else { + // hide clicked element + done = [ hilite ]; + } + + pl.hide( done ); + thePrintliminatorVars.history.push( done ); + + if ( opposite ) { + // messages will get hidden if alt+click used + // this is easier than trying to detect it + pl.removeClass( document.querySelector( 'ul.' + pl.css.messages ), pl.css.hidden ); + } + + } + + // remove any text selection + pl.clearSelection(); + + } + }, + + bodyMouseover : function( event ) { + if ( !pl.hasClass( event.target, pl.css.controls ) ) { + pl.addClass( event.target, pl.css.hilite ); + } + // make sure main window has focus + window.focus(); + }, + + bodyKeyUp : function( event ) { + event.preventDefault(); + switch ( event.which ) { + + // PrntScrn only works on keyup + case pl.keys.print: + pl.print(); + break; + + } + }, + + bodyKeyDown : function( event ) { + event.preventDefault(); + var n, suffix, elm, els, isBody, + body = document.body, + msg = pl.messages, + el = body.querySelector( '.' + pl.css.hilite ), + hidden = pl.css.hidden, + highlight = pl.css.hilite; + + if ( el ) { + isBody = el.nodeName === 'BODY'; + + switch ( event.which ) { + case pl.keys.parent1 : // pageUp + case pl.keys.parent2 : // up arrow + els = el.parentNode; + if ( !isBody && els ) { + pl.removeClass( el, highlight ); + pl.addClass( els, highlight ); + } + break; + + case pl.keys.child1 : // pageDown + case pl.keys.child2 : // down arrow + elm = pl.getFirstChild( el ); + if ( elm ) { + pl.removeClass( el, highlight ); + // first visible child element + pl.addClass( elm, highlight ); + } + break; + + case pl.keys.nextSib : // right arrow (siblings) + elm = pl.getNext( el ); + if ( !isBody && elm ) { + pl.removeClass( el, highlight ); + pl.addClass( elm, highlight ); + } + break; + + case pl.keys.prevSib : // left arrow (siblings) + elm = pl.getPrev( el ); + if ( !isBody && elm ) { + pl.removeClass( el, highlight ); + pl.addClass( elm, highlight ); + } + break; + + case pl.keys.hide : // enter + if ( !isBody ) { + pl.addClass( el, hidden ); + pl.addClass( el.parentNode, highlight ); + thePrintliminatorVars.history.push( el ); + } + break; + + } + } + + n = window.getComputedStyle( body, null ).getPropertyValue( 'font-size' ); + suffix = n.match( /[a-z]+/i )[0]; + + switch ( event.which ) { + case pl.keys.fontUp : // Numpad + = Increase font size + body.style.fontSize = ( parseFloat( n ) + 1 ) + suffix; + break; + + case pl.keys.fontDown : // Numpad - = Decrease font size + body.style.fontSize = ( parseFloat( n ) - 1 ) + suffix; + break; + + case pl.keys.fontReset : // Numpad * = reset font-size + body.style.fontSize = ''; + break; + + case pl.keys.undo : // backspace + pl.undo(); + break; + + case pl.keys.abort : // Esc + pl.abort(); + break; + + } + + }, + + filterElements : function( elm ) { + return elm && + // element node + elm.nodeType === 1 && + // not an ignored element + !pl.ignoredElm.test( elm.nodeName ) && + // not controls + !pl.hasClass( elm, pl.css.controls ) && + // not hidden + !( pl.hasClass( elm, pl.css.hidden ) || elm.style.display === 'none' ); + }, + + getOpposite : function( el ) { + var sibs, + done = []; + + // method: start from highlighted element + // get siblings & hide them; then go to parent, get siblings & hide them... + // rinse & repeat until we hit the body element + while ( el.nodeName !== 'BODY' ) { + sibs = pl.getSiblings( el ); + done = done.concat( sibs ); + el = el.parentNode; + } + return done; + }, + + getFirstChild : function( el ) { + var children = Array.prototype.filter.call( el.children, pl.filterElements ); + return children.length ? children[0] : null; + }, + + // modified from + // https://plainjs.com/javascript/traversing/get-siblings-of-an-element-40/ + getSiblings : function ( el ) { + var siblings = [], + sibling = el.parentNode.firstChild; + for ( ; sibling; sibling = sibling.nextSibling ) { + if ( sibling !== el && pl.filterElements( sibling ) ) { + siblings.push( sibling ); + } + } + return siblings; + }, + + // modified from + // https://plainjs.com/javascript/traversing/get-siblings-of-an-element-40/ + getNext : function ( el ) { + while ( el = el.nextSibling ) { // jshint ignore:line + if ( el && pl.filterElements( el ) ) { + return el; + } + } + return null; + }, + + // modified from + // https://plainjs.com/javascript/traversing/get-siblings-of-an-element-40/ + getPrev : function( el ) { + while ( el = el.previousSibling ) { // jshint ignore:line + if ( el && pl.filterElements( el ) ) { + return el; + } + } + return null; + }, + + removeHighlight : function() { + // remove all highlight class names, just in case + var indx, + // include body as it might also get the highlight class + hilite = document.querySelectorAll( '.' + pl.css.hilite ), + len = hilite.length; + for ( indx = 0; indx < len; indx++ ) { + pl.removeClass( hilite[ indx ], pl.css.hilite ); + } + }, + + removeGraphics : function( event, body ) { + if ( !thePrintliminatorVars.flags.removeGraphics ) { + // for testing + body = body || document.body; + var indx, bkgd, + bkgds = [], + done = body.querySelectorAll( pl.noGraphics ), + items = body.querySelectorAll( '*:not(.' + pl.css.controls + ')' ), + len = items.length; + + for ( indx = 0; indx < len; indx++ ) { + bkgd = window.getComputedStyle( items[ indx ] ).getPropertyValue( 'background-image' ); + if ( bkgd && bkgd !== 'none' ) { + bkgds.push( [ items[ indx ], bkgd ] ); + items[ indx ].style.backgroundImage = 'none'; + } + } + + pl.removeHighlight(); + pl.hide( done ); + thePrintliminatorVars.flags.removeGraphics = true; + + thePrintliminatorVars.history.push( function() { + thePrintliminatorVars.flags.removeGraphics = false; + pl.show( done ); + len = bkgds.length; + for ( indx = 0; indx < len; indx++ ) { + bkgds[ indx ][ 0 ].style.backgroundImage = bkgds[ indx ][ 1 ]; + } + }); + } + }, + + // Add print style + stylize : function() { + if ( !thePrintliminatorVars.flags.stylize ) { + var indx, + inline = [], + body = document.body, + links = document.querySelectorAll( 'link[rel="stylesheet"]' ), + visibleElms = document.querySelectorAll( 'body *:not(.' + pl.css.hidden + '):not(.' + pl.css.controls + ')' ), + len = links.length; + + for ( indx = 0; indx < len; indx++ ) { + if ( links[ indx ].id !== pl.css.stylesheet ) { + links[ indx ].disabled = true; + } + } + + // cache and remove inline styles + Array.prototype.filter.call( visibleElms, function( elm ) { + var style = elm.getAttribute( 'style' ); + if ( style !== null ) { + elm.removeAttribute( 'style' ); + inline.push({ + el: elm, + style: style + }); + } + }); + + pl.addClass( body, pl.css.stylized ); + pl.removeHighlight(); + thePrintliminatorVars.flags.stylize = true; + + thePrintliminatorVars.history.push( function() { + thePrintliminatorVars.flags.stylize = false; + pl.removeClass( body, pl.css.stylized ); + var indx, + len = links.length; + for ( indx = 0; indx < len; indx++ ) { + links[ indx ].disabled = false; + } + len = inline.length; + for ( indx = 0; indx < len; indx++ ) { + inline[ indx ].el.setAttribute( 'style', inline[ indx ].style ); + } + }); + } + }, + + print : function() { + var frame = document.body.querySelector( 'iframe.' + pl.css.controls ).contentWindow.document; + pl.addClass( frame.querySelector( 'li.' + pl.css.print ), pl.css.busy ); + + pl.removeHighlight(); + + // use setTimeout to allow class to render + setTimeout( function() { + window.print(); + pl.busy( function() { + pl.removeClass( frame.querySelector( 'li.' + pl.css.print ), pl.css.busy ); + }); + }, 10); + }, + busy : function( callback ) { + if ( document.readyState !== 'complete' ) { + var loopy = function( i ) { + setTimeout(function () { + // ready state is delayed when a file on the page is not found + if ( document.readyState === 'complete' || i === 1 ) { + callback(); + i = 0; + } + if ( --i > 0 ) { + loopy(i); + } + }, 1000); + }; + // repeat 20 times (20 seconds), then just remove the busy class + loopy( 20 ); + } else { + callback(); + } + }, + + // Undo + undo : function() { + var last = thePrintliminatorVars.history.pop(); + if ( last ) { + pl.removeHighlight(); + if ( typeof last !== 'function' ) { + pl.show( last ); + } else { + last.call(); + } + } + }, + + abort : function() { + var body = document.body; + pl.removeHighlight(); + pl.removeClass( body, pl.css.enabled ); + pl.removeEvent( body, 'click', pl.bodyClick ); + pl.removeEvent( body, 'mouseover', pl.bodyMouseover ); + pl.removeEvent( body, 'mouseout', pl.removeHighlight ); + pl.removeEvent( document, 'keyup', pl.bodyKeyUp ); + pl.removeEvent( document, 'keydown', pl.bodyKeyDown ); + + // drag + pl.removeEvent( document, 'mouseup', pl.docMouseUp ); + pl.removeEvent( document, 'mousemove', pl.docMouseMove ); + body.removeChild( document.querySelector( '.' + pl.css.wrap ) ); + + }, + + addStyles : function() { + var el, + body = document.body, + // programmically added stylesheets + styles = '@media print, screen { body._printliminator_stylized { margin: 0 !important; padding: 0 !important; line-height: 1.4 !important; word-spacing: 1.1pt !important; letter-spacing: 0.2pt !important; font-family: Garamond, "Times New Roman", serif !important; color: #000 !important; background: none !important; font-size: 12pt !important; /*Headings */ /* Images */ /* Table */ } body._printliminator_stylized h1, body._printliminator_stylized h2, body._printliminator_stylized h3, body._printliminator_stylized h4, body._printliminator_stylized h5, body._printliminator_stylized h6 { font-family: Helvetica, Arial, sans-serif !important; } body._printliminator_stylized h1 { font-size: 19pt !important; } body._printliminator_stylized h2 { font-size: 17pt !important; } body._printliminator_stylized h3 { font-size: 15pt !important; } body._printliminator_stylized h4, body._printliminator_stylized h5, body._printliminator_stylized h6 { font-size: 12pt !important; } body._printliminator_stylized code { font: 10pt Courier, monospace !important; } body._printliminator_stylized blockquote { margin: 1.3em !important; padding: 1em !important; font-size: 10pt !important; } body._printliminator_stylized hr { background-color: #ccc !important; } body._printliminator_stylized img { float: left !important; margin: 1em 1.5em 1.5em 0 !important; } body._printliminator_stylized a img { border: none !important; } body._printliminator_stylized table { margin: 1px !important; text-align: left !important; border-collapse: collapse !important; } body._printliminator_stylized th { border: 1px solid #333 !important; font-weight: bold !important; } body._printliminator_stylized td { border: 1px solid #333 !important; } body._printliminator_stylized th, body._printliminator_stylized td { padding: 4px 10px !important; } body._printliminator_stylized tfoot { font-style: italic !important; } body._printliminator_stylized caption { background: #fff !important; margin-bottom: 20px !important; text-align: left !important; } body._printliminator_stylized thead { display: table-header-group !important; } body._printliminator_stylized tr { page-break-inside: avoid !important; } ._printliminator_hidden { display: none !important; } ._printliminator_full_width { width: 100% !important; min-width: 100% !important; max-width: 100% !important; margin: 0 !important; } } @media print { ._printliminator_wrap { display: none !important; } } @media screen { body._printliminator_stylized { padding: 20px !important; } ._printliminator_highlight { outline: 3px solid red !important; cursor: default !important; } ._printliminator_highlight._printliminator_full_width { outline-color: blue !important; } ._printliminator_wrap { width: 450px !important; height: 220px; position: fixed !important; top: 20px; right: 20px; z-index: 999999 !important; box-shadow: 0 0 80px black !important; } ._printliminator_wrap iframe { width: 450px !important; height: 220px; border: 0 !important; overflow-x: hidden !important; margin: 0 !important; padding: 0 !important; } ._printliminator_drag_icon { width: 28px !important; height: 20px !important; position: absolute !important; top: 0 !important; left: 0 !important; cursor: move !important; } ._printliminator_drag_icon._printliminator_drag_active { width: 120px !important; height: 100px !important; top: -40px !important; left: -40px !important; } body._printliminator_no_selection, ._printliminator_highlight, ._printliminator_wrap, ._printliminator_drag_icon, ._printliminator_wrap iframe { -webkit-user-select: none !important; -moz-user-select: none !important; -ms-user-select: none !important; user-select: none !important; } } '; + + // add print stylesheet + el = document.createElement( 'style' ); + el.id = pl.css.stylesheet; + el.innerHTML = styles; + document.querySelector( 'head' ).appendChild( el ); + }, + + // create popup (bookmarklet) + addControls : function() { + var frame, + body = document.body, + el = document.createElement( 'div' ), + controls = pl.css.controls; + + body.appendChild( el ); + pl.addClass( el, pl.css.wrap ); + pl.addClass( el, controls ); + + el.innerHTML = '<iframe class="' + controls + '"></iframe>' + + '<div class="' + controls + ' ' + pl.css.drag + '"></div>'; + + frame = el.querySelector( 'iframe.' + controls ).contentWindow.document; + // Firefox needs script to open, write, then close... innerHTML doesn't work. + frame.open(); + frame.write('<div class="header"> <div class="close right">CLOSE <span class="icon close"></span></div> <div><span class="icon _printliminator_drag_icon"></span> DRAG</div> </div> <div class="top"> <img class="pl_logo" 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v2.8H131.2z%22%2F%3E%0A%3C%2Fg%3E%0A%3C%2Fsvg%3E%0A" alt="The Printliminator"> <h3><span>Just click stuff on page to remove.</span> Alt-click to remove opposite.</h3> </div> <div class="footer"> <h3>Other Useful Superpowers</h3> <ul> <li class="undo"><span class="icon"></span>Undo<br>Last</li> <li class="stylize"><span class="icon"></span>Add Print<br>Styles</li> <li class="no_graphics"><span class="icon"></span>Remove<br>Graphics</li> <li class="print"><span class="icon"></span>Send to<br>print</li> </ul> <div class="keyboard-area"> <p class="toggle keyboard">View Keyboard Commands</p> <table id="keyboard" style="display:none"> <thead> <tr><th class="key">Key</th><th>Description</th></tr> </thead> <tbody> <tr><td><kbd>PageUp</kbd> <span class="lower">or</span> <kbd class="bold" title="Up Arrow">↑</kbd></td><td>Find wrapper of highlighted box</td></tr> <tr><td><kbd>PageDown</kbd> <span class="lower">or</span> <kbd class="bold" title="Down Arrow">↓</kbd></td><td>Find content of highlighted box</td></tr> <tr><td><kbd class="bold" title="Right Arrow">→</kbd></td><td>Find next box inside same wrapper</td></tr> <tr><td><kbd class="bold" title="Left Arrow">←</kbd></td><td>Find previous box inside same wrapper</td></tr> <tr><td><kbd>Enter</kbd></td><td>Remove the highlighted box</td></tr> <tr><td><kbd>Backspace</kbd></td><td>Undo last action</td></tr> <tr><td><kbd title="Numpad Plus">Numpad <span class="bold">+</span></kbd></td><td>Increase font-size by 1</td></tr> <tr><td><kbd title="Numpad Minus">NumPad <span class="bold">-</span></kbd></td><td>Decrease font-size by 1</td></tr> <tr><td><kbd title="Numpad Asterisk (Multiply)">NumPad <span class="bold asterisk">*</span></kbd></td><td>Reset font-size</td></tr> <tr> <td><kbd>Alt</kbd> + <span class="icon left_click" title="left-click on mouse"></span></td> <td>Remove everything but highlighted box</td> </tr> <tr> <td><kbd>Shift</kbd> + <span class="icon left_click" title="left-click on mouse"></span></td> <td>Set box width to 100% & margins to zero (highlight turns blue)</td> </tr> </tbody> </table> </div> </div><style>*, *:before, *:after { box-sizing: inherit; } html { box-sizing: border-box; height: 100%; } html, body { background: #eee; min-height: 220px; font-family: "Lucida Grande", "Lucida Sans Unicode", Tahoma, sans-serif; font-size: 14px; margin: 0; padding: 0; cursor: default; overflow: hidden; -webkit-user-select: none; -moz-user-select: none; -ms-user-select: none; user-select: none; } .top { background: #fff; padding: 15px; } .top h3 { color: #ccc; margin: 0; } .top h3 span { color: red; } .header, li { background: #111; color: #fff; font-size: 11px; } .header, .header > div { height: 21px; font-size: 11px; } .header > div, li { display: inline-block; } .right { float: right; margin-right: 6px; } .footer { padding: 15px 15px 0 15px; } .footer ul { margin: 0 0 15px 0; padding: 0; list-style-type: none; } .keyboard-area { margin: 0 -15px 0 -15px; /* extend keyboard background outside of popup - accomidate for different row heights in browsers */ padding: 15px 15px 50px 15px; background: #ccc; } .toggle { font-size: 12px; margin: 0 0 15px 0; cursor: pointer; } .pl_logo { width: 225px; height: 15px; margin: 0 0 5px 0; } h1, h3 { margin: 0 0 10px; font-weight: normal; text-transform: uppercase; } h3 { font-size: 10px; font-weight: bold; } .close, ._printliminator_drag_icon { text-transform: uppercase; } .icon { display: inline-block; background: 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no-repeat; width: 25px; height: 25px; vertical-align: middle; } ._printliminator_drag_icon .icon { background-position: 0 0; } .print .icon { background-position: -25px 0; } .close .icon { background-position: -75px 0; width: 40px; cursor: pointer; } .undo .icon { background-position: 0 -25px; } .no_graphics .icon { background-position: -25px -25px; } .stylize .icon { background-position: -75px -25px; width: 35px; } .left_click { background-position: -50px -25px; } li.busy .icon { background-position: -50px 0; -webkit-animation: spin 1.5s linear infinite; -moz-animation: spin 1.5s linear infinite; animation: spin 1.5s linear infinite; } @-moz-keyframes spin { 100% { -moz-transform: rotate(360deg); } } @-webkit-keyframes spin { 100% { -webkit-transform: rotate(360deg); } } @keyframes spin { 100% { -webkit-transform: rotate(360deg); transform: rotate(360deg); } } li { padding: 4px 14px 4px 4px; line-height: 12px; font-size: 10px; text-transform: uppercase; text-align: left; white-space: nowrap; margin: 2px; cursor: pointer; display: inline-block; } li:hover { background-color: #333; } li span { float: left; margin: 0 10px 0 0; text-align: left; } .key { width: 30%; } table { margin: 0 4px; border-spacing: 0; } th { text-align: left; padding: 0; } kbd { background: #fff; border: #000 1px solid; border-radius: 3px; padding: 1px 3px; } td { border-top: 1px solid #aaa; font-size: 12px; padding: 5px; /* make Firefox match Webkit */ line-height: 18px; } </style>'); + + frame.close(); + + pl.addEvent( frame.querySelector( '.' + pl.css.noGraphics ), 'click', pl.removeGraphics ); + pl.addEvent( frame.querySelector( '.' + pl.css.print ), 'click', pl.print ); + pl.addEvent( frame.querySelector( '.' + pl.css.undo ), 'click', pl.undo ); + pl.addEvent( frame.querySelector( '.' + pl.css.stylize ), 'click', pl.stylize ); + pl.addEvent( frame.querySelector( '.' + pl.css.close ), 'click', pl.abort ); + pl.addEvent( frame.querySelector( '.' + pl.css.keyboard ), 'click', pl.keyboard ); + // can't drag from within the iframe - the mouse coordinates would be within it + pl.addEvent( document.querySelector( '.' + pl.css.drag ), 'mousedown', pl.dragInit ); + // include mouseup inside frame to stop the drag + pl.addEvent( frame, 'mouseup', pl.docMouseUp ); + }, + + keyboard : function() { + var wrap = document.querySelector( '.' + pl.css.wrap ), + iframe = wrap.querySelector( 'iframe.' + pl.css.controls ), + ibody = iframe.contentWindow.document.body, + kb = ibody.querySelector( '#' + pl.css.keyboard ), + button = ibody.querySelector( '.' + pl.css.keyboard ), + disply = kb.style.display, + makeVisible = disply === 'none'; + button.innerHTML = makeVisible ? 'Hide Keyboard Commands' : 'View Keyboard Commands'; + kb.style.display = makeVisible ? '' : 'none'; + wrap.style.height = ( makeVisible ? pl.keyboardOpen : pl.keyboardClosed ) + 5 + 'px'; + // iframe needs to be a tiny bit taller than the body inside + iframe.style.height = ( makeVisible ? pl.keyboardOpen : pl.keyboardClosed ) + 5 + 'px'; + ibody.style.height = ( makeVisible ? pl.keyboardOpen : pl.keyboardClosed ) + 20 + 'px'; + }, + + // drag code adapted from http://jsfiddle.net/tovic/Xcb8d/light/ + dragInit : function() { + var drag = pl.drag; + pl.addClass( document.querySelector( '.' + pl.css.drag ), pl.css.dragActive ); + drag.el = document.querySelector( '.' + pl.css.wrap ); + drag.elm[0] = drag.pos[0] - drag.el.offsetLeft; + drag.elm[1] = drag.pos[1] - drag.el.offsetTop; + // prevent selecting content while dragging + pl.toggleSelection( true ); + }, + + docMouseMove : function( event ) { + var drag = pl.drag; + drag.pos[0] = document.all ? window.event.clientX : event.pageX; + drag.pos[1] = document.all ? window.event.clientY : event.pageY; + if ( pl.drag.el !== null ) { + drag.el.style.left = ( drag.pos[0] - drag.elm[0] ) + 'px'; + drag.el.style.top = ( drag.pos[1] - drag.elm[1] ) + 'px'; + } + }, + + docMouseUp : function() { + pl.drag.el = null; + pl.removeClass( document.querySelector( '.' + pl.css.drag ), pl.css.dragActive ); + pl.toggleSelection(); + }, + + stopSelection : function() { + return false; + }, + + toggleSelection : function( disable ) { + var body = document.body; + if ( disable ) { + // save current "unselectable" value + pl.savedUnsel = body.getAttribute( 'unselectable' ); + body.setAttribute( 'unselectable', 'on' ); + pl.addClass( body, pl.css.noSelection ); + pl.addEvent( body, 'onselectstart', pl.stopSelection ); + } else { + if ( pl.savedUnsel ) { + body.setAttribute( 'unselectable', pl.savedUnsel ); + } + pl.removeClass( body, pl.css.noSelection ); + pl.removeEvent( body, 'onselectstart', pl.stopSelection ); + } + // clear any selections + pl.clearSelection(); + }, + + clearSelection : function() { + // remove text selection - http://stackoverflow.com/a/3171348/145346 + var sel = window.getSelection ? window.getSelection() : document.selection; + if ( sel ) { + if ( sel.removeAllRanges ) { + sel.removeAllRanges(); + } else if ( sel.empty ) { + sel.empty(); + } + } + }, + + + hide : function ( els ) { + if ( els ) { + var indx, + len = els.length; + // single elements have undefined length + if ( typeof len !== 'undefined' ) { + for ( indx = 0; indx < len; indx++ ) { + pl.addClass( els[ indx ], pl.css.hidden ); + } + } else { + pl.addClass( els, pl.css.hidden ); + } + } + }, + + show : function ( els ) { + if ( els ) { + var indx, + len = els.length; + if ( typeof len !== 'undefined' ) { + for ( indx = 0; indx < len; indx++ ) { + pl.removeClass( els[ indx ], pl.css.hidden ); + } + } else { + pl.removeClass( els, pl.css.hidden ); + } + } + }, + + addClass : function( el, name ) { + if ( el ) { + if ( el.classList ) { + el.classList.add( name ); + } else if ( !pl.hasClass( el, name ) ) { + el.className += ' ' + name; + } + } + }, + + removeClass : function( el, name ) { + if ( el ) { + if ( el.classList ) { + el.classList.remove( name ); + } else { + el.className = el.className.replace( new RegExp( '\\b' + name + '\\b', 'g' ), '' ); + } + } + }, + + hasClass : function( el, name ) { + if ( el ) { + return el.classList ? + el.classList.contains( name ) : + new RegExp( '\\b' + name + '\\b' ).test( el.className ); + } + return false; + }, + + addEvent : function( el, type, handler ) { + if ( el.attachEvent ) { + el.attachEvent( 'on' + type, handler ); + } else { + el.addEventListener( type, handler ); + } + }, + + removeEvent : function( el, type, handler ) { + if ( el.detachEvent ) { + el.detachEvent( 'on' + type, handler ); + } else { + el.removeEventListener( type, handler ); + } + } + +}; + +})(); |