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Merge pull request #7 from khajjit/master
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152 changes: 76 additions & 76 deletions
152
src/app/ui-scroll/data.ts → src/app/ui-scroll-directive/modules/data.ts
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,76 +1,76 @@ | ||
| class Data { | ||
|
|
||
| static scrollerId; | ||
| static source; | ||
|
|
||
| static startIndex = 90; | ||
| static bufferSize = 5; | ||
| static padding = 0.5; // of viewport height | ||
|
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| static items = []; | ||
| static bof = false; | ||
| static eof = false; | ||
| static position = 0; | ||
|
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| static lastIndex = null; | ||
|
|
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| static setSource(datasource: any) { | ||
| if (!datasource || typeof datasource !== 'object' || typeof datasource.get !== 'function') { | ||
| throw new Error('Invalid datasource!'); | ||
| } | ||
| self.source = datasource; | ||
| } | ||
|
|
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| static setScrollerId() { | ||
| // todo dhilt : need to calculate | ||
| self.scrollerId = '0'; | ||
| } | ||
|
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| static getItemId(index: number): string { | ||
| return 'i-' + self.scrollerId + '-' + index.toString(); | ||
| } | ||
|
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| static getFirstVisibleItemIndex() { | ||
| for(let i = 0; i < self.items.length; i++) { | ||
| if(!self.items[i].invisible) { | ||
| return i; | ||
| } | ||
| } | ||
| return -1; | ||
| } | ||
|
|
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| static getFirstVisibleItem() { | ||
| const index = self.getFirstVisibleItemIndex(); | ||
| if(index >= 0) { | ||
| return self.items[index]; | ||
| } | ||
| } | ||
|
|
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| static getLastVisibleItemIndex() { | ||
| for(let i = self.items.length - 1; i >= 0; i--) { | ||
| if(!self.items[i].invisible) { | ||
| return i; | ||
| } | ||
| } | ||
| return -1; | ||
| } | ||
|
|
||
| static getLastVisibleItem() { | ||
| const index = self.getLastVisibleItemIndex(); | ||
| if(index >= 0) { | ||
| return self.items[index]; | ||
| } | ||
| } | ||
|
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| static initialize(context) { | ||
| self.setSource(context.datasource); | ||
| self.setScrollerId(); | ||
|
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| context.getItems = () => self.items; | ||
| context.getItemId = self.getItemId.bind(context); | ||
| } | ||
|
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| } | ||
|
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| const self = Data; | ||
| export default Data | ||
| class Data { | ||
|
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| static scrollerId; | ||
| static source; | ||
|
|
||
| static startIndex = 90; | ||
| static bufferSize = 5; | ||
| static padding = 0.5; // of viewport height | ||
|
|
||
| static items = []; | ||
| static bof = false; | ||
| static eof = false; | ||
| static position = 0; | ||
|
|
||
| static lastIndex = null; | ||
|
|
||
| static setSource(datasource: any) { | ||
| if (!datasource || typeof datasource !== 'object' || typeof datasource.get !== 'function') { | ||
| throw new Error('Invalid datasource!'); | ||
| } | ||
| self.source = datasource; | ||
| } | ||
|
|
||
| static setScrollerId() { | ||
| // todo dhilt : need to calculate | ||
| self.scrollerId = '0'; | ||
| } | ||
|
|
||
| static getItemId(index: number): string { | ||
| return 'i-' + self.scrollerId + '-' + index.toString(); | ||
| } | ||
|
|
||
| static getFirstVisibleItemIndex() { | ||
| for(let i = 0; i < self.items.length; i++) { | ||
| if(!self.items[i].invisible) { | ||
| return i; | ||
| } | ||
| } | ||
| return -1; | ||
| } | ||
|
|
||
| static getFirstVisibleItem() { | ||
| const index = self.getFirstVisibleItemIndex(); | ||
| if(index >= 0) { | ||
| return self.items[index]; | ||
| } | ||
| } | ||
|
|
||
| static getLastVisibleItemIndex() { | ||
| for(let i = self.items.length - 1; i >= 0; i--) { | ||
| if(!self.items[i].invisible) { | ||
| return i; | ||
| } | ||
| } | ||
| return -1; | ||
| } | ||
|
|
||
| static getLastVisibleItem() { | ||
| const index = self.getLastVisibleItemIndex(); | ||
| if(index >= 0) { | ||
| return self.items[index]; | ||
| } | ||
| } | ||
|
|
||
| static initialize(context) { | ||
| self.setSource(context.datasource); | ||
| self.setScrollerId(); | ||
|
|
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| context.getItems = () => self.items; | ||
| context.getItemId = self.getItemId.bind(context); | ||
| } | ||
|
|
||
| } | ||
|
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| const self = Data; | ||
| export default Data |
50 changes: 25 additions & 25 deletions
50
src/app/ui-scroll/debouncedRound.ts → ...croll-directive/modules/debouncedRound.ts
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,26 +1,26 @@ | ||
| let timer = null; | ||
| let next = null; | ||
|
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| const runTimer = (delay) => { | ||
| timer = setTimeout(() => { | ||
| timer = null; | ||
| if(next) { | ||
| next(); | ||
| next = null; | ||
| runTimer(delay); | ||
| } | ||
| }, delay) | ||
| }; | ||
|
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| const debouncedRound = (cb, delay) => { | ||
| if(!timer) { | ||
| cb(); | ||
| } | ||
| else { | ||
| next = cb; | ||
| clearTimeout(timer); | ||
| } | ||
| runTimer(delay); | ||
| }; | ||
|
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| let timer = null; | ||
| let next = null; | ||
|
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| const runTimer = (delay) => { | ||
| timer = setTimeout(() => { | ||
| timer = null; | ||
| if(next) { | ||
| next(); | ||
| next = null; | ||
| runTimer(delay); | ||
| } | ||
| }, delay) | ||
| }; | ||
|
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| const debouncedRound = (cb, delay) => { | ||
| if(!timer) { | ||
| cb(); | ||
| } | ||
| else { | ||
| next = cb; | ||
| clearTimeout(timer); | ||
| } | ||
| runTimer(delay); | ||
| }; | ||
|
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| export default debouncedRound |
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