Open Bug 1206504 Opened 10 years ago Updated 3 years ago

Inconsistent click and drag within a document

Categories

(Core :: DOM: UI Events & Focus Handling, defect)

28 Branch
defect

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()

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(Reporter: kdevel, Unassigned)

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(1 file)

User Agent: Steps to reproduce: 1. Place mouse pointer on >< in line (1). 2. Click and hold and slowly move towards || in line (1a). 3. Place mouse pointer on >< in line (2). 4. Click and hold and slowly move towards || in line (2a). Actual results: 2. At no time is there a selection which covers the first marked character upto the end of the document. 4. There is a point in time when the whole page content starting from the point where the mouse was clicked is selected. Expected results: Consistency.
Attached file 1206504.html Testcase
Note (as tested in Firefox 40.0.3): The behaviour seems to be dependent on view port size and text scaling. For example, if the browser window is resized to be quite small, then the same behaviour affects both lines. Alternatively, if the text is scaled to be quite large, then again, the same behaviour is seen on both lines.
Replicated in nightly build 44.0a1 (2015-09-21)
Status: UNCONFIRMED → NEW
Ever confirmed: true
User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:45.0) Gecko/20100101 Firefox/45.0 Nightly 45.0a1 Build ID:20151204030226 and Firefox 42.0 I am unable to reproduce it in the latest version.
Component: Untriaged → Event Handling
Product: Firefox → Core
Component: Event Handling → User events and focus handling
Severity: normal → S3
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