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git-svn-id: http://www.observium.org/svn/observer/trunk@2 61d68cd4-352d-0410-923a-c4978735b2b8
101 lines
3.4 KiB
JavaScript
101 lines
3.4 KiB
JavaScript
//\/////
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//\ overLIB Adaptive_Width Plugin
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//\
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//\ You may not remove or change this notice.
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//\ Copyright Erik Bosrup 1998-2003. All rights reserved.
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//\ Contributors are listed on the homepage.
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//\ See http://www.bosrup.com/web/overlib/ for details.
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//\/////
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////////
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// PRE-INIT
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// Ignore these lines, configuration is below.
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////////
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if (typeof olInfo == 'undefined' || typeof olInfo.meets == 'undefined' || !olInfo.meets(4.14)) alert('overLIB 4.14 or later is required for the Adaptive_Width Plugin.');
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else {
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registerCommands('adaptive_width');
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////////
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// DEFAULT CONFIGURATION
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// You don't have to change anything here if you don't want to. All of this can be
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// changed on your html page or through an overLIB call.
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////////
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// Default value for adaptive_width -- 300 px minimum width, 720 px maximum width
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// 4 if dividing factor for text length, 9 multiplying factor for caption text
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// if want to change just one value and keep the others at these defaults specifiy
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// a zero (0)
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var olAWDefault='300,720,4,9';
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if (typeof ol_adaptive_width=='undefined') var ol_adaptive_width='';
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////////
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// END OF CONFIGURATION
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// Don't change anything below this line, all configuration is above.
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////////
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////////
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// INIT
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////////
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// Runtime variables init. Don't change for config!
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var o3_adaptive_width='';
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////////
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// PLUGIN FUNCTIONS
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////////
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function setAdaptiveWidthVariables() {
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o3_adaptive_width=ol_adaptive_width;
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}
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// Parses Shadow and Scroll commands
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function parseAdaptiveWidthExtras(pf,i,ar) {
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var k=i;
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if (k < ar.length) {
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if (ar[k]==ADAPTIVE_WIDTH) { k=getAWArgs(++k,ar,(pf+'adaptive_width')); adjustAWSettings(pf+'adaptive_width'); return k; }
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}
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return -1;
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}
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// Function to scan command for multiple arguments for ADAPTIVE_WIDTH
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function getAWArgs(i, args, parameter) {
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var k=i,l,re,pV,str='';
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for(k=i; k<args.length; k++) {
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if(typeof args[k]=='number'&&args[k]>pmStart) break;
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str += args[k] + ',';
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}
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if (str) str=str.replace(/,$/,'');
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k--; // reduce by one so the for loop this is in works correctly
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pV=(olNs4&&/cellpad/i.test(parameter)) ? str.split(',')[0] : str;
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eval(parameter+'="' + pV + '"');
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return k;
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}
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function adjustAWSettings(pmStr) {
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if(/'ol_'/.test(pmStr)) {
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if(!eval(pmStr)) return;
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else olAWDefault = setAWarr(eval(pmStr)).join(',');
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} else if(!eval(pmStr)) eval(pmStr + '="' + olAWDefault + '"');
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}
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function checkAdaptiveWidth() {
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if (o3_adaptive_width) {
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if (o3_wrap) clearWrapSettings();
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o3_width = dynamicSizer(o3_text, o3_cap, setAWarr(o3_adaptive_width));
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}
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return true;
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}
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// sets Adaptive Width array, using default settings for any zero values
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function setAWarr(vArrStr){
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var tmpArr=new Array(), dfArr=olAWDefault.split(','), awArr=vArrStr.split(',');
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for (var i=0; i<dfArr.length; i++) tmpArr[tmpArr.length++]=(i<awArr.length&&awArr[i]) ? awArr[i] : dfArr[i];
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return tmpArr;
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}
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// function adapted from Dennis Sandow
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function dynamicSizer(aText,aCap,awArr){
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var textWide=Math.floor( parseInt(awArr[0])+aText.length/awArr[2] );
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if (aCap) textWide=Math.max( textWide, Math.floor( aCap.length*awArr[3] ) );
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return Math.min( parseInt(awArr[1]),textWide );
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}
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// function to undo any wrap commands
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function clearWrapSettings() {
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nbspCleanup();
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o3_wrap=0;
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}
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////////
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// PLUGIN REGISTRATIONS
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////////
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registerRunTimeFunction(setAdaptiveWidthVariables);
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registerCmdLineFunction(parseAdaptiveWidthExtras);
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registerPostParseFunction(checkAdaptiveWidth);
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}
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//end
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