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- forbid DUE=START; - use defaults satisfying DUE>START; - shift DUE if START violates constraint; - refactor: correct spelling of "constraint".
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53 changes: 53 additions & 0 deletions
53
opentasks/src/main/java/org/dmfs/tasks/model/constraints/After.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,53 @@ | ||
| /* | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| * | ||
| */ | ||
|
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| package org.dmfs.tasks.model.constraints; | ||
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| import android.text.format.Time; | ||
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| import org.dmfs.tasks.model.ContentSet; | ||
| import org.dmfs.tasks.model.adapters.TimeFieldAdapter; | ||
| import org.dmfs.tasks.model.defaults.AbstractDefault; | ||
| import org.dmfs.tasks.model.defaults.DefaultAfter; | ||
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| /** | ||
| * Ensure a time is after a specific reference time. The new value will be set using {@link DefaultAfter} otherwise. | ||
| */ | ||
| public class After extends AbstractConstraint<Time> | ||
| { | ||
| private final TimeFieldAdapter mReferenceAdapter; | ||
| private final AbstractDefault<Time> mDefault; | ||
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| public After(TimeFieldAdapter referenceAdapter) | ||
| { | ||
| mReferenceAdapter = referenceAdapter; | ||
| mDefault = new DefaultAfter(referenceAdapter); | ||
| } | ||
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| @Override | ||
| public Time apply(ContentSet currentValues, Time oldValue, Time newValue) | ||
| { | ||
| Time reference = mReferenceAdapter.get(currentValues); | ||
| if (reference != null && newValue != null && !newValue.after(reference)) | ||
| { | ||
| newValue.set(mDefault.getCustomDefault(currentValues, reference)); | ||
| } | ||
| return newValue; | ||
| } | ||
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| } |
79 changes: 79 additions & 0 deletions
79
opentasks/src/main/java/org/dmfs/tasks/model/constraints/BeforeOrShiftTime.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,79 @@ | ||
| /* | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| * | ||
| */ | ||
|
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| package org.dmfs.tasks.model.constraints; | ||
|
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| import android.text.format.Time; | ||
|
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| import org.dmfs.tasks.model.ContentSet; | ||
| import org.dmfs.tasks.model.adapters.TimeFieldAdapter; | ||
| import org.dmfs.tasks.model.defaults.AbstractDefault; | ||
| import org.dmfs.tasks.model.defaults.DefaultAfter; | ||
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| /** | ||
| * Ensure a time is before a specific reference time. | ||
| * Otherwise, shift the reference time by the same amount that value has been shifted. | ||
| * If this still violated the constraint, then set the reference value to its default value. | ||
| * | ||
| * TODO: use Duration class to get the duration in days and shift without summer/winter time switches | ||
| */ | ||
| public class BeforeOrShiftTime extends AbstractConstraint<Time> | ||
| { | ||
| private final TimeFieldAdapter mReferenceAdapter; | ||
| private final AbstractDefault<Time> mDefault; | ||
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| public BeforeOrShiftTime(TimeFieldAdapter referenceAdapter) | ||
| { | ||
| mReferenceAdapter = referenceAdapter; | ||
| mDefault = new DefaultAfter(null); | ||
| } | ||
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| @Override | ||
| public Time apply(ContentSet currentValues, Time oldValue, Time newValue) | ||
| { | ||
| Time reference = mReferenceAdapter.get(currentValues); | ||
| if (reference != null && newValue != null) | ||
| { | ||
| if (oldValue != null && !newValue.before(reference)) | ||
| { | ||
| // try to shift the reference value | ||
| long diff = newValue.toMillis(false) - oldValue.toMillis(false); | ||
| if (diff > 0) | ||
| { | ||
| boolean isAllDay = reference.allDay; | ||
| reference.set(reference.toMillis(false) + diff); | ||
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| // ensure the event is still allday if is was allday before. | ||
| if (isAllDay) | ||
| { | ||
| reference.set(reference.monthDay, reference.month, reference.year); | ||
| } | ||
| mReferenceAdapter.set(currentValues, reference); | ||
| } | ||
| } | ||
| if (!newValue.before(reference)) | ||
| { | ||
| // constraint is still violated, so set reference to its default value | ||
| reference.set(mDefault.getCustomDefault(currentValues, newValue)); | ||
| mReferenceAdapter.set(currentValues, reference); | ||
| } | ||
| } | ||
| return newValue; | ||
| } | ||
|
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| } |
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