diff options
Diffstat (limited to 'productmenu.js')
| -rw-r--r-- | productmenu.js | 256 |
1 files changed, 0 insertions, 256 deletions
diff --git a/productmenu.js b/productmenu.js deleted file mode 100644 index 90bb18195..000000000 --- a/productmenu.js +++ /dev/null @@ -1,256 +0,0 @@ -// Adds to the target select object all elements in array that -// correspond to the elements selected in source. -// - array should be a array of arrays, indexed by product name. the -// array should contain the elements that correspont to that -// product. Example: -// var array = Array(); -// array['ProductOne'] = [ 'ComponentA', 'ComponentB' ]; -// updateSelect(array, source, target); -// - sel is a list of selected items, either whole or a diff -// depending on sel_is_diff. -// - sel_is_diff determines if we are sending in just a diff or the -// whole selection. a diff is used to optimize adding selections. -// - target should be the target select object. -// - single specifies if we selected a single item. if we did, no -// need to merge. - -function updateSelect( array, sel, target, sel_is_diff, single, blank ) { - - var i, j, comp; - - // if single, even if it's a diff (happens when you have nothing - // selected and select one item alone), skip this. - if ( ! single ) { - - // array merging/sorting in the case of multiple selections - if ( sel_is_diff ) { - - // merge in the current options with the first selection - comp = merge_arrays( array[sel[0]], target.options, 1 ); - - // merge the rest of the selection with the results - for ( i = 1 ; i < sel.length ; i++ ) { - comp = merge_arrays( array[sel[i]], comp, 0 ); - } - } else { - // here we micro-optimize for two arrays to avoid merging with a - // null array - comp = merge_arrays( array[sel[0]],array[sel[1]], 0 ); - - // merge the arrays. not very good for multiple selections. - for ( i = 2; i < sel.length; i++ ) { - comp = merge_arrays( comp, array[sel[i]], 0 ); - } - } - } else { - // single item in selection, just get me the list - comp = array[sel[0]]; - } - - // save the selection in the target select so we can restore it later - var selections = new Array(); - for ( i = 0; i < target.options.length; i++ ) - if (target.options[i].selected) selections.push(target.options[i].value); - - // clear select - target.options.length = 0; - - // add empty "Any" value back to the list - if (blank) target.options[0] = new Option( blank, "" ); - - // load elements of list into select - for ( i = 0; i < comp.length; i++ ) { - target.options[target.options.length] = new Option( comp[i], comp[i] ); - } - - // restore the selection - for ( i=0 ; i<selections.length ; i++ ) - for ( j=0 ; j<target.options.length ; j++ ) - if (target.options[j].value == selections[i]) target.options[j].selected = true; - -} - -// Returns elements in a that are not in b. -// NOT A REAL DIFF: does not check the reverse. -// - a,b: arrays of values to be compare. - -function fake_diff_array( a, b ) { - var newsel = new Array(); - - // do a boring array diff to see who's new - for ( var ia in a ) { - var found = 0; - for ( var ib in b ) { - if ( a[ia] == b[ib] ) { - found = 1; - } - } - if ( ! found ) { - newsel[newsel.length] = a[ia]; - } - found = 0; - } - return newsel; - } - -// takes two arrays and sorts them by string, returning a new, sorted -// array. the merge removes dupes, too. -// - a, b: arrays to be merge. -// - b_is_select: if true, then b is actually an optionitem and as -// such we need to use item.value on it. - - function merge_arrays( a, b, b_is_select ) { - var pos_a = 0; - var pos_b = 0; - var ret = new Array(); - var bitem, aitem; - - // iterate through both arrays and add the larger item to the return - // list. remove dupes, too. Use toLowerCase to provide - // case-insensitivity. - - while ( ( pos_a < a.length ) && ( pos_b < b.length ) ) { - - if ( b_is_select ) { - bitem = b[pos_b].value; - } else { - bitem = b[pos_b]; - } - aitem = a[pos_a]; - - // smaller item in list a - if ( aitem.toLowerCase() < bitem.toLowerCase() ) { - ret[ret.length] = aitem; - pos_a++; - } else { - // smaller item in list b - if ( aitem.toLowerCase() > bitem.toLowerCase() ) { - ret[ret.length] = bitem; - pos_b++; - } else { - // list contents are equal, inc both counters. - ret[ret.length] = aitem; - pos_a++; - pos_b++; - } - } - } - - // catch leftovers here. these sections are ugly code-copying. - if ( pos_a < a.length ) { - for ( ; pos_a < a.length ; pos_a++ ) { - ret[ret.length] = a[pos_a]; - } - } - - if ( pos_b < b.length ) { - for ( ; pos_b < b.length; pos_b++ ) { - if ( b_is_select ) { - bitem = b[pos_b].value; - } else { - bitem = b[pos_b]; - } - ret[ret.length] = bitem; - } - } - return ret; - } - -// selectProduct reads the selection from f[productfield] and updates -// f.version, component and target_milestone accordingly. -// - f: a form containing product, component, varsion and -// target_milestone select boxes. -// globals (3vil!): -// - cpts, vers, tms: array of arrays, indexed by product name. the -// subarrays contain a list of names to be fed to the respective -// selectboxes. For bugzilla, these are generated with perl code -// at page start. -// - usetms: this is a global boolean that is defined if the -// bugzilla installation has it turned on. generated in perl too. -// - first_load: boolean, specifying if it's the first time we load -// the query page. -// - last_sel: saves our last selection list so we know what has -// changed, and optimize for additions. - -function selectProduct( f , productfield, componentfield, blank ) { - - // this is to avoid handling events that occur before the form - // itself is ready, which happens in buggy browsers. - - if ( ( !f ) || ( ! f[productfield] ) ) { - return; - } - - // Do nothing if no products are defined (this avoids the - // "a has no properties" error from merge_arrays function) - if (f[productfield].length == blank ? 1 : 0) { - return; - } - - // if this is the first load and nothing is selected, no need to - // merge and sort all components; perl gives it to us sorted. - - if ( ( first_load ) && ( f[productfield].selectedIndex == -1 ) ) { - first_load = 0; - return; - } - - // turn first_load off. this is tricky, since it seems to be - // redundant with the above clause. It's not: if when we first load - // the page there is _one_ element selected, it won't fall into that - // clause, and first_load will remain 1. Then, if we unselect that - // item, selectProduct will be called but the clause will be valid - // (since selectedIndex == -1), and we will return - incorrectly - - // without merge/sorting. - - first_load = 0; - - // - sel keeps the array of products we are selected. - // - is_diff says if it's a full list or just a list of products that - // were added to the current selection. - // - single indicates if a single item was selected - // - selectedIndex is the index of the first selected item - // - selectedValue is the value of the first selected item - var sel = Array(); - var is_diff = 0; - var single; - var selectedIndex = f[productfield].selectedIndex; - var selectedValue = f[productfield].options[selectedIndex].value; - - // If nothing is selected, or the selected item is the "blank" value - // at the top of the list which represents all products on drop-down menus, - // then pick all products so we show all components. - if ( selectedIndex == -1 || !cpts[selectedValue]) - { - for ( var i = blank ? 1 : 0 ; i < f[productfield].length ; i++ ) { - sel[sel.length] = f[productfield].options[i].value; - } - // If there is only one product, then only one product can be selected - single = ( sel.length == 1 ); - } else { - - for ( i = blank ? 1 : 0 ; i < f[productfield].length ; i++ ) { - if ( f[productfield].options[i].selected ) { - sel[sel.length] = f[productfield].options[i].value; - } - } - - single = ( sel.length == 1 ); - - // save last_sel before we kill it - var tmp = last_sel; - last_sel = sel; - - // this is an optimization: if we've added components, no need - // to remerge them; just merge the new ones with the existing - // options. - - if ( ( tmp ) && ( tmp.length < sel.length ) ) { - sel = fake_diff_array(sel, tmp); - is_diff = 1; - } - } - - // do the actual fill/update - updateSelect( cpts, sel, f[componentfield], is_diff, single, blank ); -} |