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https://issues.apache.org/jira/browse/FLEX-34649?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14248490#comment-14248490
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Alex Harui commented on FLEX-34649:
-----------------------------------
I thought I filed a bug. I'd rather not spend the time researching right now,
but if you have time, go find the commit that added the discretionaryHyphens
workaround and see what JIRA issue that was and check there.
> Fatal errors in TextBlock after pasting text of specific length in TextArea
> ---------------------------------------------------------------------------
>
> Key: FLEX-34649
> URL: https://issues.apache.org/jira/browse/FLEX-34649
> Project: Apache Flex
> Issue Type: Bug
> Components: Spark: TextArea
> Affects Versions: Apache Flex 4.12.1
> Reporter: Mihai Chira
> Assignee: Mihai Chira
> Labels: easytest
> Fix For: Apache Flex 4.14.0
>
> Attachments: FLEX-34649.ZIP, bug.txt, noBug.txt
>
>
> h2. Scenario 1
> *Steps to reproduce*:
> # Compile and run the attached project
> # Click on the TextArea and press SPACE, then LEFT
> # Paste this text, _including the empty line at the end_: {noformat}This
> sentence needs to wrap with one or two characters lik: w
> {noformat}
> # Press DELETE
> *Desired behaviour*: the space is deleted without a fatal
> *Actual behaviour*: {noformat}TypeError: Error #1009: Cannot access a
> property or method of a null object reference.
> at
> flashx.textLayout.elements::ParagraphElement/findNextAtomBoundary()[C:\Users\evolverine\Adobe
> Flash Builder
> 4.7\FLEX-26478\src\flashx\textLayout\elements\ParagraphElement.as:576]
> at
> flashx.textLayout.utils::NavigationUtil$/nextAtomHelper()[/Users/aharui/git/flex/master/flex-tlf/textLayout/src/flashx/textLayout/utils/NavigationUtil.as:93]
> at
> flashx.textLayout.utils::NavigationUtil$/doIncrement()[/Users/aharui/git/flex/master/flex-tlf/textLayout/src/flashx/textLayout/utils/NavigationUtil.as:58]
> at
> flashx.textLayout.utils::NavigationUtil$/nextAtomPosition()[/Users/aharui/git/flex/master/flex-tlf/textLayout/src/flashx/textLayout/utils/NavigationUtil.as:104]
> at
> flashx.textLayout.edit::EditManager/deleteNextCharacter()[/Users/aharui/git/flex/master/flex-tlf/textLayout/src/flashx/textLayout/edit/EditManager.as:1273]
> at
> flashx.textLayout.edit::EditManager/keyDownHandler()[/Users/aharui/git/flex/master/flex-tlf/textLayout/src/flashx/textLayout/edit/EditManager.as:371]
> at
> flashx.textLayout.container::ContainerController/keyDownHandler()[C:\Users\evolverine\Adobe
> Flash Builder
> 4.7\FLEX-26478\src\flashx\textLayout\container\ContainerController.as:2539]
> at
> flashx.textLayout.container::TextContainerManager/keyDownHandler()[/Users/aharui/git/flex/master/flex-tlf/textLayout/src/flashx/textLayout/container/TextContainerManager.as:1889]
> at
> spark.components.supportClasses::RichEditableTextContainerManager/keyDownHandler()[/Users/aharui/release4.13.0/frameworks/projects/spark/src/spark/components/supportClasses/RichEditableTextContainerManager.as:665]
> {noformat}
> ----
> h2. Scenario 2
> *Steps to reproduce*:
> # Compile and run the attached project
> # Click on the TextArea
> # Paste this text: {noformat}:Boolean = tl.getAtomBidiLevel(currentAtomIndex)
> if{noformat}
> # Press LEFT / BACKSPACE
> *Desired behaviour*: the cursor moves left without an error / the last
> character ("f") is deleted without an error.
> *Actual behaviour*: {noformat}TypeError: Error #1009: Cannot access a
> property or method of a null object reference.
> at
> flashx.textLayout.elements::ParagraphElement/findPreviousAtomBoundary()[C:\Users\evolverine\Adobe
> Flash Builder
> 4.7\FLEX-26478\src\flashx\textLayout\elements\ParagraphElement.as:493]
> at
> flashx.textLayout.utils::NavigationUtil$/previousAtomHelper()[/Users/aharui/git/flex/master/flex-tlf/textLayout/src/flashx/textLayout/utils/NavigationUtil.as:70]
> at
> flashx.textLayout.utils::NavigationUtil$/doIncrement()[/Users/aharui/git/flex/master/flex-tlf/textLayout/src/flashx/textLayout/utils/NavigationUtil.as:58]
> at
> flashx.textLayout.utils::NavigationUtil$/previousAtomPosition()[/Users/aharui/git/flex/master/flex-tlf/textLayout/src/flashx/textLayout/utils/NavigationUtil.as:81]
> at
> flashx.textLayout.utils::NavigationUtil$/moveBackwardHelper()[/Users/aharui/git/flex/master/flex-tlf/textLayout/src/flashx/textLayout/utils/NavigationUtil.as:229]
> at
> flashx.textLayout.utils::NavigationUtil$/previousCharacter()[/Users/aharui/git/flex/master/flex-tlf/textLayout/src/flashx/textLayout/utils/NavigationUtil.as:292]
> at
> flashx.textLayout.edit::SelectionManager/handleLeftArrow()[/Users/aharui/git/flex/master/flex-tlf/textLayout/src/flashx/textLayout/edit/SelectionManager.as:1640]
> at
> flashx.textLayout.edit::SelectionManager/handleKeyEvent()[/Users/aharui/git/flex/master/flex-tlf/textLayout/src/flashx/textLayout/edit/SelectionManager.as:1807]
> at
> flashx.textLayout.edit::SelectionManager/keyDownHandler()[/Users/aharui/git/flex/master/flex-tlf/textLayout/src/flashx/textLayout/edit/SelectionManager.as:1870]
> at
> flashx.textLayout.edit::EditManager/keyDownHandler()[/Users/aharui/git/flex/master/flex-tlf/textLayout/src/flashx/textLayout/edit/EditManager.as:291]
> at
> flashx.textLayout.container::ContainerController/keyDownHandler()[C:\Users\evolverine\Adobe
> Flash Builder
> 4.7\FLEX-26478\src\flashx\textLayout\container\ContainerController.as:2539]
> at
> flashx.textLayout.container::TextContainerManager/keyDownHandler()[/Users/aharui/git/flex/master/flex-tlf/textLayout/src/flashx/textLayout/container/TextContainerManager.as:1889]
> at
> spark.components.supportClasses::RichEditableTextContainerManager/keyDownHandler()[/Users/aharui/release4.13.0/frameworks/projects/spark/src/spark/components/supportClasses/RichEditableTextContainerManager.as:665]
> {noformat}
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