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Make several languageMode APIs optional in TextEditor

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This commit is contained in:
Max Brunsfeld
2017-11-03 17:32:16 -07:00
parent 351f96d5dd
commit 113b563b7e
1 changed files with 32 additions and 8 deletions
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40
src/text-editor.js
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@@ -950,7 +950,7 @@ class TextEditor {
// Controls visibility based on the given {Boolean}.
setVisible (visible) {
const languageMode = this.buffer.getLanguageMode()
languageMode.setVisible(visible)
languageMode.setVisible && languageMode.setVisible(visible)
}
setMini (mini) {
@@ -3749,7 +3749,11 @@ class TextEditor {
// level.
foldCurrentRow () {
const {row} = this.getCursorBufferPosition()
const range = this.buffer.getLanguageMode().getFoldableRangeContainingPoint(Point(row, Infinity))
const languageMode = this.buffer.getLanguageMode()
const range = (
languageMode.getFoldableRangeContainingPoint &&
languageMode.getFoldableRangeContainingPoint(Point(row, Infinity))
)
if (range) return this.displayLayer.foldBufferRange(range)
}
@@ -3768,8 +3772,12 @@ class TextEditor {
// * `bufferRow` A {Number}.
foldBufferRow (bufferRow) {
let position = Point(bufferRow, Infinity)
const languageMode = this.buffer.getLanguageMode()
while (true) {
const foldableRange = this.buffer.getLanguageMode().getFoldableRangeContainingPoint(position, this.getTabLength())
const foldableRange = (
languageMode.getFoldableRangeContainingPoint &&
languageMode.getFoldableRangeContainingPoint(position, this.getTabLength())
)
if (foldableRange) {
const existingFolds = this.displayLayer.foldsIntersectingBufferRange(Range(foldableRange.start, foldableRange.start))
if (existingFolds.length === 0) {
@@ -3803,8 +3811,13 @@ class TextEditor {
// Extended: Fold all foldable lines.
foldAll () {
const languageMode = this.buffer.getLanguageMode()
const foldableRanges = (
languageMode.getFoldableRanges &&
languageMode.getFoldableRanges(this.getTabLength())
)
this.displayLayer.destroyAllFolds()
for (let range of this.buffer.getLanguageMode().getFoldableRanges(this.getTabLength())) {
for (let range of foldableRanges || []) {
this.displayLayer.foldBufferRange(range)
}
}
@@ -3820,8 +3833,13 @@ class TextEditor {
//
// * `level` A {Number}.
foldAllAtIndentLevel (level) {
const languageMode = this.buffer.getLanguageMode()
const foldableRanges = (
languageMode.getFoldableRangesAtIndentLevel &&
languageMode.getFoldableRangesAtIndentLevel(level, this.getTabLength())
)
this.displayLayer.destroyAllFolds()
for (let range of this.buffer.getLanguageMode().getFoldableRangesAtIndentLevel(level, this.getTabLength())) {
for (let range of foldableRanges || []) {
this.displayLayer.foldBufferRange(range)
}
}
@@ -3834,7 +3852,8 @@ class TextEditor {
//
// Returns a {Boolean}.
isFoldableAtBufferRow (bufferRow) {
return this.buffer.getLanguageMode().isFoldableAtRow(bufferRow)
const languageMode = this.buffer.getLanguageMode()
return languageMode.isFoldableAtRow && languageMode.isFoldableAtRow(bufferRow)
}
// Extended: Determine whether the given row in screen coordinates is foldable.
@@ -4368,7 +4387,8 @@ class TextEditor {
*/
suggestedIndentForBufferRow (bufferRow, options) {
return this.buffer.getLanguageMode().suggestedIndentForBufferRow(bufferRow, options)
const languageMode = this.buffer.getLanguageMode()
return languageMode.suggestedIndentForBufferRow && languageMode.suggestedIndentForBufferRow(bufferRow, options)
}
// Given a buffer row, indent it.
@@ -4393,7 +4413,11 @@ class TextEditor {
}
autoDecreaseIndentForBufferRow (bufferRow) {
const indentLevel = this.buffer.getLanguageMode().suggestedIndentForEditedBufferRow(bufferRow)
const languageMode = this.buffer.getLanguageMode()
const indentLevel = (
languageMode.suggestedIndentForEditedBufferRow &&
languageMode.suggestedIndentForEditedBufferRow(bufferRow)
)
if (indentLevel != null) this.setIndentationForBufferRow(bufferRow, indentLevel)
}