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Move some more common code to UIevents; add support for configuring discoverability; make frame always be in pixels rather than sometimes em's; add comments to UIevents

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This commit is contained in:
Davide P. Cervone 2011-08-23 12:40:52 -04:00
parent 9289568584
commit 849ce80599
6 changed files with 176 additions and 99 deletions
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6
unpacked/MathJax.js
View File

@ -1188,6 +1188,10 @@ MathJax.Hub = {
"v1.0-compatible": true, // set to false to prevent loading of default configuration file
elements: [], // array of elements to process when none is given explicitly
showMathMenu: true, // attach math context menu to mathml?
showMathMenuMSIE: true, // separtely determine if MSIE should have math menu
// (since the code for that is a bit delicate)
preProcessors: [], // list of callbacks for preprocessing (initialized by extensions)
inputJax: {}, // mime-type mapped to input jax (by registration)
outputJax: {order:{}}, // mime-type mapped to output jax list (by registration)
@ -1367,7 +1371,7 @@ MathJax.Hub = {
if (script.type && this.config.inputJax[script.type.replace(/ *;(.|\n)*/,"")]) {
if (script.MathJax) {
if (script.MathJax.elementJax && script.MathJax.elementJax.hover) {
script.MathJax.elementJax.hover.clear(script.MathJax.elementJax);
MathJax.Extension.UIevents.Hover.ClearHover(script.MathJax.elementJax);
}
if (script.MathJax.state !== STATE.PENDING) {this.scriptAction[action](script)}
}

205
unpacked/extensions/UIevents.js
View File

@ -40,7 +40,7 @@
"box-shadow": "0px 0px 15px #83A", // Opera 10.5 and IE9
"-webkit-box-shadow": "0px 0px 15px #83A", // Safari and Chrome
"-moz-box-shadow": "0px 0px 15px #83A", // Forefox 3.5
"-moz-box-shadow": "0px 0px 15px #83A", // Forefox
"-khtml-box-shadow": "0px 0px 15px #83A", // Konqueror
border: "1px solid #A6D ! important",
@ -49,7 +49,6 @@
".MathJax_Hover_Arrow": {
position:"absolute",
// top:"-5px", right:"-9px",
top:"1px", right:"-11px",
width:"15px", height:"11px",
cursor:"pointer"
@ -64,6 +63,7 @@
var EVENT = UI.Event = {
LEFTBUTTON: 0, // the event.button value for left button
RIGHTBUTTON: 2, // the event.button value for right button
MENUKEY: "altKey", // the event value for alternate context menu
Mousedown: function (event) {return EVENT.Handler(event,"Mousedown",this)},
@ -76,23 +76,16 @@
Menu: function (event) {return EVENT.Handler(event,"ContextMenu",this)},
//
// Call the output jax's event handler
// Call the output jax's event handler or the zoom handler
//
Handler: function (event,type,math) {
if (AJAX.loadingMathMenu || AJAX.loadMathZoom) {return False(event)}
if (AJAX.loadingMathMenu) {return False(event)}
var jax = OUTPUT[math.jaxID];
if (!event) {event = window.event}
event.isContextMenu = (type === "ContextMenu");
return jax.HandleEvent(event,type,math);
},
//
// For use in the output jax (this will be the output jax)
//
HandleEvent: function (event,type,math) {
if (this[type]) {return this[type].call(this,event,math)}
if (jax[type]) {return jax[type](event,math)}
if (EXTENSION.MathZoom) {return EXTENSION.MathZoom.HandleEvent(event,type,math)}
},
//
// Try to cancel the event in every way we can
@ -111,12 +104,30 @@
//
// Load the contextual menu code, if needed, and post the menu
//
ContextMenu: function (event,jax) {
ContextMenu: function (event,math,force) {
//
// Check if we are showing menus
//
var JAX = OUTPUT[math.jaxID], jax = JAX.getJaxFromMath(math);
var show = (JAX.config.showMathMenu != null ? JAX : HUB).config.showMathMenu;
if (!show || (SETTINGS.context !== "MathJax" && !force)) return;
//
// Remove selections, remove hover fades
//
if (UI.msieEventBug) {event = window.event}
if (UI.safariContextMenuBug) {setTimeout("window.getSelection().empty()",0)}
if (document.selection) {setTimeout("document.selection.empty()",0)}
HOVER.ClearHoverTimer();
if (jax.hover) {
if (jax.hover.remove) {clearTimeout(jax.hover.remove); delete jax.hover.remove}
jax.hover.nofade = true;
}
//
// If the menu code is loaded, post the menu
// Otherwse lad the menu code and try again
//
var MENU = MathJax.Menu;
if (MENU) {
MENU.jax = jax;
@ -133,44 +144,83 @@
CALLBACK.Queue(
AJAX.Require("[MathJax]/extensions/MathMenu.js"),
function () {delete AJAX.loadingMathMenu; if (!MathJax.Menu) {MathJax.Menu = {}}},
["ContextMenu",this,ev,jax] // call this function again
["ContextMenu",this,ev,math,force] // call this function again
);
}
return this.False(event);
return EVENT.False(event);
}
},
//
// Mousedown handler for alternate means of accessing menu
//
AltContextMenu: function (event,math) {
var JAX = OUTPUT[math.jaxID], jax = JAX.getJaxFromMath(math);
var show = (JAX.config.showMathMenu != null ? JAX : HUB).config.showMathMenu;
if (show) {
if (SETTINGS.context === "MathJax") {
if (!UI.noContextMenuBug || event.button !== EVENT.RIGHTBUTTON) return;
} else {
if (!event[EVENT.MENUKEY] || event.button !== EVENT.LEFTBUTTON) return;
}
return JAX.ContextMenu(event,math,true);
}
}
};
//
// Handle hover "discoverability"
//
var HOVER = UI.Hover = {
//
// Check if we are moving from a non-MathJax element to a MathJax one
// and either start fading in again (if it is fading out) or start the
// timer for the hover
//
Mouseover: function (event,math) {
var from = event.fromElement || event.relatedTarget,
to = event.toElement || event.target;
if (from && to && from.isMathJax != to.isMathJax) {
var jax = this.getJaxFromMath(math);
if (jax.hover) {HOVER.ReHover(jax)} else {HOVER.HoverTimer(jax,math)}
return EVENT.False(event);
if (SETTINGS.discoverable) {
var from = event.fromElement || event.relatedTarget,
to = event.toElement || event.target;
if (from && to && from.isMathJax != to.isMathJax) {
var jax = this.getJaxFromMath(math);
if (jax.hover) {HOVER.ReHover(jax)} else {HOVER.HoverTimer(jax,math)}
return EVENT.False(event);
}
}
},
//
// Check if we are moving from a MathJax element to a non-MathJax one
// and either start fading out, or clear the timer if we haven't
// hovered yet
//
Mouseout: function (event,math) {
var from = event.fromElement || event.relatedTarget,
to = event.toElement || event.target;
if (from && to && from.isMathJax != to.isMathJax) {
var jax = this.getJaxFromMath(math);
if (jax.hover) {HOVER.UnHover(jax)} else {HOVER.ClearHoverTimer()}
return EVENT.False(event);
if (SETTINGS.discoverable) {
var from = event.fromElement || event.relatedTarget,
to = event.toElement || event.target;
if (from && to && from.isMathJax != to.isMathJax) {
var jax = this.getJaxFromMath(math);
if (jax.hover) {HOVER.UnHover(jax)} else {HOVER.ClearHoverTimer()}
return EVENT.False(event);
}
}
},
//
// Restart hover timer if the mouse moves
//
Mousemove: function (event,math) {
var jax = this.getJaxFromMath(math); if (jax.hover) return;
if (HOVER.lastX == event.clientX && HOVER.lastY == event.clientY) return;
HOVER.lastX = event.clientX; HOVER.lastY = event.clientY;
HOVER.HoverTimer(jax,math);
return EVENT.False(event);
if (SETTINGS.discoverable) {
var jax = this.getJaxFromMath(math); if (jax.hover) return;
if (HOVER.lastX == event.clientX && HOVER.lastY == event.clientY) return;
HOVER.lastX = event.clientX; HOVER.lastY = event.clientY;
HOVER.HoverTimer(jax,math);
return EVENT.False(event);
}
},
//
// Clear the old timer and start a new one
//
HoverTimer: function (jax,math) {
this.ClearHoverTimer();
this.hoverTimer = setTimeout(CALLBACK(["Hover",this,jax,math]),SETTINGS.hover);
@ -179,24 +229,36 @@
if (this.hoverTimer) {clearTimeout(this.hoverTimer); delete this.hoverTimer}
},
//
// Handle putting up the hover frame
//
Hover: function (jax,math) {
//
// Check if Zoom handles the hover event
//
if (EXTENSION.MathZoom && EXTENSION.MathZoom.Hover({},math)) return;
//
// Get the hover data
//
var JAX = jax.outputJax,
span = JAX.getHoverSpan(jax,math),
bbox = JAX.getHoverBBox(jax,span,math);
var dx = 3.5/bbox.em, dy = 5/bbox.em, dd = 1/bbox.em; // frame size
jax.hover = {opacity:0, clear:this.ClearHover};
bbox = JAX.getHoverBBox(jax,span,math),
show = (JAX.config.showMathMenu != null ? JAX : HUB).config.showMathMenu;
var dx = 3.5, dy = 5, dd = 1; // frame size
if (UI.msieBorderWidthBug) {dd = 0}
jax.hover.id = "MathJax-Hover-"+jax.inputID.replace(/.*-(\d+)$/,"$1");
jax.hover = {opacity:0, id: jax.inputID+"-Hover"};
//
// The frame and menu button
//
var frame = HTML.Element("span",{
id:jax.hover.id, isMathJax: true,
style:{display:"inline-block", width:0, height:0, position:"relative"}
},[["span",{
className:"MathJax_Hover_Frame", isMathJax: true,
style:{
display:"inline-block", position:"absolute", overflow:"visible",
top:bbox.Units(-bbox.h-dy-dd-(bbox.y||0)), left:bbox.Units(-dx-dd+(bbox.x||0)),
width:bbox.Units(bbox.w+2*dx), height:bbox.Units(bbox.h+bbox.d+2*dy),
display:"inline-block", position:"absolute",
top:this.Px(-bbox.h-dy-dd-(bbox.y||0)), left:this.Px(-dx-dd+(bbox.x||0)),
width:this.Px(bbox.w+2*dx), height:this.Px(bbox.h+bbox.d+2*dy),
opacity:0, filter:"alpha(opacity=0)"
}},[[
"img",{
@ -214,18 +276,34 @@
frame.firstChild.style.width = bbox.width;
frame.firstChild.firstChild.style.right = "-5px";
}
if (!show) {frame.firstChild.removeChild(frame.firstChild.firstChild)}
//
// Add the frame
//
span.parentNode.insertBefore(frame,span);
if (span.style) {span.style.position = "relative"}
if (span.style) {span.style.position = "relative"} // so math is on top of hover frame
//
// Start the hover fade-in
//
this.ReHover(jax,.2);
},
//
// Restart the hover fade in and fade-out timers
//
ReHover: function (jax) {
if (jax.hover.remove) {clearTimeout(jax.hover.remove)}
jax.hover.remove = setTimeout(CALLBACK(["UnHover",this,jax]),15*1000);
this.HoverFadeTimer(jax,.2);
},
//
// Start the fade-out
//
UnHover: function (jax) {
if (!jax.hover.nofade) {this.HoverFadeTimer(jax,-.05,400)}
},
//
// Handle the fade-in and fade-out
//
HoverFade: function (jax) {
delete jax.hover.timer;
jax.hover.opacity = Math.max(0,Math.min(1,jax.hover.opacity + jax.hover.inc));
@ -240,16 +318,27 @@
if (jax.hover.remove) {clearTimeout(jax.hover.remove)}
delete jax.hover;
},
//
// Set the fade to in or out (via inc) and start the timer, if needed
//
HoverFadeTimer: function (jax,inc,delay) {
jax.hover.inc = inc;
if (!jax.hover.timer) {
jax.hover.timer = setTimeout(CALLBACK(["HoverFade",this,jax]),(delay||50));
}
},
//
// Handle a click on the menu button
//
HoverMenu: function (event) {
if (!event) {event = window.event}
OUTPUT[this.jax].ContextMenu(event,this.math,true);
},
//
// Clear all hover timers
//
ClearHover: function (jax) {
if (jax.hover.remove) {clearTimeout(jax.hover.remove)}
if (jax.hover.timer) {clearTimeout(jax.hover.timer)}
@ -257,9 +346,12 @@
delete jax.hover;
},
Em: function (m) {
if (Math.abs(m) < .0006) {return "0em"}
return m.toFixed(3).replace(/\.?0+$/,"") + "em";
//
// Make a measurement in pixels
//
Px: function (m) {
if (Math.abs(m) < .006) {return "0px"}
return m.toFixed(2).replace(/\.?0+$/,"") + "px";
},
//
@ -324,24 +416,43 @@
};
//
// Mobile screens are small, so use larger version of arrow
//
var arrow = CONFIG.styles[".MathJax_Hover_Arrow"];
if (HUB.Browser.isMobile) {
arrow.width = "25px"; arrow.height = "18px";
arrow.top = "-11px"; arrow.right = "-15px";
}
//
// Set up browser-specific values
//
HUB.Browser.Select({
MSIE: function (browser) {
var mode = (document.documentMode||0);
UI.msieBorderWidthBug = (document.compatMode === "BackCompat");
if (mode < 9) {EVENT.LEFTBUTTON = 1}
UI.msieZIndexBug = (mode < 8);
if (mode < 8 && !browser.isIE9) {arrow.top = arrow.right = "-1px"}
UI.msieBorderWidthBug = (document.compatMode === "BackCompat"); // borders are inside offsetWidth/Height
UI.msieZIndexBug = (mode < 8); // put hover frame on top of math
UI.msieEventBug = browser.isIE9; // must get event from window even though event is passes
if (mode < 8 && !browser.isIE9) {arrow.top = arrow.right = "-1px"} // IE < 8 clips to frame
if (mode < 9) {EVENT.LEFTBUTTON = 1} // IE < 9 has wrong event.button values
},
Safari: function (browser) {
UI.safariContextMenuBug = true; // selection can be started by contextmenu event
},
Konqueror: function (browser) {
UI.noContextMenuBug = true; // doesn't produce contextmenu event
}
});
//
// Get configuration from user
//
CONFIG = HUB.CombineConfig("UIevents",CONFIG);
//
// Queue the events needed for startup
//
CALLBACK.Queue(
["getImages",HOVER],
["Styles",AJAX,CONFIG.styles],

2
unpacked/jax/output/HTML-CSS/config.js
View File

@ -39,8 +39,6 @@ MathJax.OutputJax["HTML-CSS"] = MathJax.OutputJax({
imageFont: "TeX",
undefinedFamily: "STIXGeneral,'Arial Unicode MS',serif",
showMathMenu: true,
styles: {
".MathJax_Display": {
"text-align": "center",

30
unpacked/jax/output/HTML-CSS/jax.js
View File

@ -307,7 +307,8 @@
EVENT = MathJax.Extension.UIevents.Event;
TOUCH = MathJax.Extension.UIevents.Touch;
HOVER = MathJax.Extension.UIevents.Hover;
this.HandleEvent = EVENT.HandleEvent;
this.ContextMenu = EVENT.ContextMenu;
this.Mousedown = EVENT.AltContextMenu;
this.Mouseover = HOVER.Mouseover;
this.Mouseout = HOVER.Mouseout;
this.Mousemove = HOVER.Mousemove;
@ -425,32 +426,14 @@
if (this.useProcessingFrame) frame.parentNode.replaceChild(div,frame);
},
ContextMenu: function (event,math,force) {
if (this.config.showMathMenu && (this.settings.context === "MathJax" || force)) {
if (this.safariContextMenuBug) {setTimeout("window.getSelection().empty()",0)}
if (this.msieEventBug) {event = window.event}
HOVER.ClearHoverTimer();
return EVENT.ContextMenu(event,this.getJaxFromMath(math));
}
},
Mousedown: function (event,math) {
if (this.config.showMathMenu) {
if (this.settings.context === "MathJax") {
if (!this.noContextMenuBug || event.button !== 2) return
} else {
if (!event[EVENT.MENUKEY] || event.button !== EVENT.LEFTBUTTON) return
}
return this.ContextMenu(event,math,true);
}
},
getJaxFromMath: function (math) {
if (math.parentNode.className === "MathJax_Display") {math = math.parentNode}
return HUB.getJaxFor(math.nextSibling);
},
getHoverSpan: function (jax) {return jax.root.HTMLspanElement()},
getHoverBBox: function (jax,span) {
var bbox = span.bbox;
var BBOX = {w:bbox.w, h:bbox.h, d:bbox.d, Units:HTMLCSS.Em, em:HTMLCSS.em};
var bbox = span.bbox, em = HTMLCSS.outerEm;
var BBOX = {w:bbox.w*em, h:bbox.h*em, d:bbox.d*em};
if (bbox.width) {BBOX.width = bbox.width}
return BBOX;
},
@ -2174,7 +2157,6 @@
HTMLCSS.Augment({
getMarginScale: HTMLCSS.getMSIEmarginScale,
PaddingWidthBug: true,
msieEventBug: browser.isIE9,
msieAccentBug: true,
msieColorBug: true,
msieColorPositionBug: true, // needs position:relative to put color behind text
@ -2235,7 +2217,6 @@
rfuzz: .05,
AccentBug: true,
AdjustSurd: true,
safariContextMenuBug: true,
safariNegativeSpaceBug: true,
safariVerticalAlignBug: !v3p1,
safariTextNodeBug: !v3p0,
@ -2290,8 +2271,7 @@
Konqueror: function (browser) {
HTMLCSS.Augment({
konquerorVerticalAlignBug: true,
noContextMenuBug: true
konquerorVerticalAlignBug: true
});
}
});

4
unpacked/jax/output/NativeMML/config.js
View File

@ -30,9 +30,7 @@ MathJax.OutputJax.NativeMML = MathJax.OutputJax({
config: {
scale: 100, // scaling factor for all math
showMathMenu: true, // attach math context menu to mathml?
showMathMenuMSIE: true, // separtely determine if MSIE should have math menu
// (since the code for that is a bit delicate)
styles: {
"DIV.MathJax_MathML": {
"text-align": "center",

28
unpacked/jax/output/NativeMML/jax.js
View File

@ -43,7 +43,8 @@
EVENT = MathJax.Extension.UIevents.Event;
TOUCH = MathJax.Extension.UIevents.Touch;
HOVER = MathJax.Extension.UIevents.Hover;
this.HandleEvent = EVENT.HandleEvent;
this.ContextMenu = EVENT.ContextMenu;
this.Mousedown = EVENT.AltContextMenu;
this.Mouseover = HOVER.Mouseover;
this.Mouseout = HOVER.Mouseout;
this.Mousemove = HOVER.Mousemove;
@ -128,7 +129,10 @@
container.addEventListener("mouseup",EVENT.False,true);
container.addEventListener("click",EVENT.Click,true);
container.addEventListener("dblclick",EVENT.DblClick,true);
} else if (this.config.showMathMenuMSIE) {this.MSIEoverlay(container)}
} else {
var config = (this.config.showMathMenuMSIE != null ? this : HUB).config;
if (config.showMathMenuMSIE) {this.MSIEoverlay(container)}
}
} else {
container.oncontextmenu = EVENT.Menu;
container.onmouseover = EVENT.Mouseover;
@ -193,23 +197,6 @@
return EVENT.False(event);
},
ContextMenu: function (event,math,force) {
if (this.config.showMathMenu && (this.settings.context === "MathJax" || force)) {
if (document.selection) {setTimeout("document.selection.empty()",0)}
if (this.msieEventBug) {event = window.event}
return EVENT.ContextMenu(event,this.getJaxFromMath(math));
}
},
Mousedown: function (event,math) {
if (this.config.showMathMenu) {
if (this.settings.context === "MathJax") {
if (!this.noContextMenuBug || event.button !== 2) return
} else {
if (!event[EVENT.MENUKEY] || event.button !== EVENT.LEFTBUTTON) return
}
return this.ContextMenu(event,math,true);
}
},
getJaxFromMath: function (math) {
if (math.className === "MathJax_MSIE_Overlay") {math = math.parentNode.parentNode}
return HUB.getJaxFor(math.parentNode.nextSibling);
@ -224,9 +211,8 @@
var h = this.topImg.offsetTop, d = span.offsetHeight-h, w = span.offsetWidth;
span.removeChild(this.topImg);
var x = (math.className === "MathJax_MSIE_Overlay" ? -w : 0);
return {w:w, h:h, d:d, x:x, Units:this.PX, em:1}
return {w:w, h:h, d:d, x:x}
},
PX: function (n) {return n+"px"},
NAMEDSPACE: {